Overdosing on Chemo: A Common Gene Test Could Save Hundreds of Lives Each Year
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One January morning in 2021, Carol Rosen took a standard treatment for metastatic breast cancer. Three gruesome weeks later, she died in excruciating pain from the very drug meant to prolong her life.
Rosen, a 70-year-old retired schoolteacher, passed her final days in anguish, enduring severe diarrhea and nausea and terrible sores in her mouth that kept her from eating, drinking, and, eventually, speaking. Skin peeled off her body. Her kidneys and liver failed. “Your body burns from the inside out,” said Rosen’s daughter, Lindsay Murray, of Andover, Massachusetts.
Rosen was one of more than 275,000 cancer patients in the United States who are infused each year with fluorouracil, known as 5-FU, or, as in Rosen’s case, take a nearly identical drug in pill form called capecitabine. These common types of chemotherapy are no picnic for anyone, but for patients who are deficient in an enzyme that metabolizes the drugs, they can be torturous or deadly.
Those patients essentially overdose because the drugs stay in the body for hours rather than being quickly metabolized and excreted. The drugs kill an estimated 1 in 1,000 patients who take them — hundreds each year — and severely sicken or hospitalize 1 in 50. Doctors can test for the deficiency and get results within a week — and then either switch drugs or lower the dosage if patients have a genetic variant that carries risk.
Yet a recent survey found that only 3% of U.S. oncologists routinely order the tests before dosing patients with 5-FU or capecitabine. That’s because the most widely followed U.S. cancer treatment guidelines — issued by the National Comprehensive Cancer Network — don’t recommend preemptive testing.
The FDA added new warnings about the lethal risks of 5-FU to the drug’s label on March 21 following queries from KFF Health News about its policy. However, it did not require doctors to administer the test before prescribing the chemotherapy.
The agency, whose plan to expand its oversight of laboratory testing was the subject of a House hearing, also March 21, has said it could not endorse the 5-FU toxicity tests because it’s never reviewed them.
But the FDA at present does not review most diagnostic tests, said Daniel Hertz, an associate professor at the University of Michigan College of Pharmacy. For years, with other doctors and pharmacists, he has petitioned the FDA to put a black box warning on the drug’s label urging prescribers to test for the deficiency.
“FDA has responsibility to assure that drugs are used safely and effectively,” he said. The failure to warn, he said, “is an abdication of their responsibility.”
The update is “a small step in the right direction, but not the sea change we need,” he said.
Europe Ahead on Safety
British and European Union drug authorities have recommended the testing since 2020. A small but growing number of U.S. hospital systems, professional groups, and health advocates, including the American Cancer Society, also endorse routine testing. Most U.S. insurers, private and public, will cover the tests, which Medicare reimburses for $175, although tests may cost more depending on how many variants they screen for.
In its latest guidelines on colon cancer, the Cancer Network panel noted that not everyone with a risky gene variant gets sick from the drug, and that lower dosing for patients carrying such a variant could rob them of a cure or remission. Many doctors on the panel, including the University of Colorado oncologist Wells Messersmith, have said they have never witnessed a 5-FU death.
In European hospitals, the practice is to start patients with a half- or quarter-dose of 5-FU if tests show a patient is a poor metabolizer, then raise the dose if the patient responds well to the drug. Advocates for the approach say American oncology leaders are dragging their feet unnecessarily, and harming people in the process.
“I think it’s the intransigence of people sitting on these panels, the mindset of ‘We are oncologists, drugs are our tools, we don’t want to go looking for reasons not to use our tools,’” said Gabriel Brooks, an oncologist and researcher at the Dartmouth Cancer Center.
Oncologists are accustomed to chemotherapy’s toxicity and tend to have a “no pain, no gain” attitude, he said. 5-FU has been in use since the 1950s.
Yet “anybody who’s had a patient die like this will want to test everyone,” said Robert Diasio of the Mayo Clinic, who helped carry out major studies of the genetic deficiency in 1988.
Oncologists often deploy genetic tests to match tumors in cancer patients with the expensive drugs used to shrink them. But the same can’t always be said for gene tests aimed at improving safety, said Mark Fleury, policy director at the American Cancer Society’s Cancer Action Network.
When a test can show whether a new drug is appropriate, “there are a lot more forces aligned to ensure that testing is done,” he said. “The same stakeholders and forces are not involved” with a generic like 5-FU, first approved in 1962, and costing roughly $17 for a month’s treatment.
Oncology is not the only area in medicine in which scientific advances, many of them taxpayer-funded, lag in implementation. For instance, few cardiologists test patients before they go on Plavix, a brand name for the anti-blood-clotting agent clopidogrel, although it doesn’t prevent blood clots as it’s supposed to in a quarter of the 4 million Americans prescribed it each year. In 2021, the state of Hawaii won an $834 million judgment from drugmakers it accused of falsely advertising the drug as safe and effective for Native Hawaiians, more than half of whom lack the main enzyme to process clopidogrel.
The fluoropyrimidine enzyme deficiency numbers are smaller — and people with the deficiency aren’t at severe risk if they use topical cream forms of the drug for skin cancers. Yet even a single miserable, medically caused death was meaningful to the Dana-Farber Cancer Institute, where Carol Rosen was among more than 1,000 patients treated with fluoropyrimidine in 2021.
Her daughter was grief-stricken and furious after Rosen’s death. “I wanted to sue the hospital. I wanted to sue the oncologist,” Murray said. “But I realized that wasn’t what my mom would want.”
Instead, she wrote Dana-Farber’s chief quality officer, Joe Jacobson, urging routine testing. He responded the same day, and the hospital quickly adopted a testing system that now covers more than 90% of prospective fluoropyrimidine patients. About 50 patients with risky variants were detected in the first 10 months, Jacobson said.
Dana-Farber uses a Mayo Clinic test that searches for eight potentially dangerous variants of the relevant gene. Veterans Affairs hospitals use a 11-variant test, while most others check for only four variants.
Different Tests May Be Needed for Different Ancestries
The more variants a test screens for, the better the chance of finding rarer gene forms in ethnically diverse populations. For example, different variants are responsible for the worst deficiencies in people of African and European ancestry, respectively. There are tests that scan for hundreds of variants that might slow metabolism of the drug, but they take longer and cost more.
These are bitter facts for Scott Kapoor, a Toronto-area emergency room physician whose brother, Anil Kapoor, died in February 2023 of 5-FU poisoning.
Anil Kapoor was a well-known urologist and surgeon, an outgoing speaker, researcher, clinician, and irreverent friend whose funeral drew hundreds. His death at age 58, only weeks after he was diagnosed with stage 4 colon cancer, stunned and infuriated his family.
In Ontario, where Kapoor was treated, the health system had just begun testing for four gene variants discovered in studies of mostly European populations. Anil Kapoor and his siblings, the Canadian-born children of Indian immigrants, carry a gene form that’s apparently associated with South Asian ancestry.
Scott Kapoor supports broader testing for the defect — only about half of Toronto’s inhabitants are of European descent — and argues that an antidote to fluoropyrimidine poisoning, approved by the FDA in 2015, should be on hand. However, it works only for a few days after ingestion of the drug and definitive symptoms often take longer to emerge.
Most importantly, he said, patients must be aware of the risk. “You tell them, ‘I am going to give you a drug with a 1 in 1,000 chance of killing you. You can take this test. Most patients would be, ‘I want to get that test and I’ll pay for it,’ or they’d just say, ‘Cut the dose in half.’”
Alan Venook, the University of California-San Francisco oncologist who co-chairs the panel that sets guidelines for colorectal cancers at the National Comprehensive Cancer Network, has led resistance to mandatory testing because the answers provided by the test, in his view, are often murky and could lead to undertreatment.
“If one patient is not cured, then you giveth and you taketh away,” he said. “Maybe you took it away by not giving adequate treatment.”
Instead of testing and potentially cutting a first dose of curative therapy, “I err on the latter, acknowledging they will get sick,” he said. About 25 years ago, one of his patients died of 5-FU toxicity and “I regret that dearly,” he said. “But unhelpful information may lead us in the wrong direction.”
In September, seven months after his brother’s death, Kapoor was boarding a cruise ship on the Tyrrhenian Sea near Rome when he happened to meet a woman whose husband, Atlanta municipal judge Gary Markwell, had died the year before after taking a single 5-FU dose at age 77.
“I was like … that’s exactly what happened to my brother.”
Murray senses momentum toward mandatory testing. In 2022, the Oregon Health & Science University paid $1 million to settle a suit after an overdose death.
“What’s going to break that barrier is the lawsuits, and the big institutions like Dana-Farber who are implementing programs and seeing them succeed,” she said. “I think providers are going to feel kind of bullied into a corner. They’re going to continue to hear from families and they are going to have to do something about it.”
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
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How influencers and content creators discuss birth control on social media: What research shows
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
News articles in recent weeks have documented the spread of misinformation about hormonal birth control methods on popular social media platforms like TikTok, YouTube and X, formerly called Twitter. Influencers with large and small followings are sharing unsubstantiated claims about the side effects of contraceptives, while directly or indirectly encouraging others to stop using them.
This trend has not escaped researchers, who for several years have been investigating what people who can get pregnant are posting on social media platforms about hormonal and non-hormonal birth control methods. Understanding the drivers of these trends is important because they have implications for policy and patient care, according to researchers. Some worry that during the post-Dobbs era, when there are continued strikes against reproductive rights in the U.S., misinformation about birth control on social media could have a negative influence on contraceptive preferences — potentially leading to more unwanted pregnancies.
More than 90% of women of reproductive age have used at least one contraceptive method, according to a 2023 report by the U.S. National Center for Health Statistics. However, the report also finds that the use of male condoms and withdrawal methods increased between 2006 and 2019, while the use of the birth control pill decreased. Non-hormonal contraception methods, including condoms, spermicides, withdrawal and menstrual cycle tracking, are 10% or less effective than hormonal contraceptives. The only exceptions are surgical sterilization and the copper intrauterine device.
To be sure, not all birth control-related content posted on social media platforms is negative, studies show. Health care professionals are sharing educational material with a high rate of engagement and non-health care professional users share their positive experiences with the birth control methods they use.
But as you will see in the studies curated below, researchers also find that social media users, including influencers, share inaccurate information about hormonal contraceptives on various social media platforms, discuss their discontinuation of birth control in favor of non-hormonal methods and engage in unsubstantiated fear-mongering of hormonal contraceptives.
Researchers also have learned that the content posted on social media platforms has changed in tone over time, mirroring the shift in the national political discourse.
In a 2021 study published in the American Journal of Obstetrics & Gynecology, researchers analyzed more than 800,000 English-language tweets mentioning at least one contraceptive method between March 2006, when Twitter was founded, and December 2019. They coded the sentiment of tweets as positive, neutral or negative.
“What we found over time was that the number of neutral tweets went down for each and every one of the birth control methods, and people became more polarized with regards to how they talk on these social media platforms over those 13 years,” says study co-author Dr. Deborah Bartz, an OB-GYN at Brigham and Women’s Hospital with expertise in complex family planning and an associate professor at Harvard Medical School.
In a February 2024 commentary in the Journal of Women’s Health, University of Delaware researchers Emily Pfender and Leah Fowler argue that ongoing dialogue about contraception on social media provides “a glimpse into public sentiment about available options” to people who can get pregnant.
The authors also note that misinformation and disinformation about hormonal contraception may have a larger effect on health disparities, especially among historically marginalized groups who may already mistrust the medical establishment.
“This may contribute to unintended pregnancy and delayed care, further widening health disparities and hindering progress toward equitable reproductive health outcomes,” Pfender and Fowler write.
Side effects
There are known side effects to hormonal birth control methods, including headaches, nausea, sore breasts and spotting. Most are mild and disappear with continued use or with switching to another method. Among hormonal contraceptives, only the Depo-Provera injection has been linked with weight gain, studies show.
But some social media influencers have spread false claims about the potential side effects of hormonal birth control methods, ranging from infertility to abortion to unattractiveness. Despite these false claims, physicians and professional organizations such as the American College of Obstetricians and Gynecologists find today’s contraceptive options safe and very effective.
“They’re about the most low-risk prescription that I give,” says Dr. Megana Dwarakanath, an adolescent medicine physician in Pittsburgh. “I always joke that if something goes wrong in someone’s life, they’re within the reproductive years, it always gets blamed on birth control.”
Dwarakanath says her young patients are most worried about two side effects: weight gain and mood. “Those are the things that they will almost always attribute to their birth control at a time that their bodies are also changing very rapidly,” she says. “Things like mental health diagnoses or personality disorders also tend to crop up during the time young people have started or have been on birth control.”
Most research on the link between oral contraceptives and cancer risk comes from observational studies, according to the National Cancer Institute. Overall, the studies have consistently shown that the risks of breast and cervical cancer are slightly increased for women who use oral contraceptives, whereas the risk of endometrial, ovarian and colorectal cancers are reduced.
The use of hormonal birth control has also been associated with an increase in the risk of developing blood clots, studies show. But that risk is not universal for everyone who takes hormonal birth control. This risk is higher for women 35 and older, those who smoke, are very overweight or have a history of cardiovascular disease. Overall, 3 to 9 out of 10,000 women who take the pill are at risk of developing blood clots within a given year. The risk for women who don’t take the pill is 1 to 5 out of 10,000.
There is no association between the pill and mood disorders, according to a large body of research, including a 2021 cohort study of nearly 740,000 young women.
It’s worth noting the dearth of research into women’s reproductive health due to chronic underfunding of women’s health research. An analysis of funding by the U.S. National Institutes of Health finds that in nearly three-quarters of the cases where a disease affects mainly one gender, the institute’s funding pattern favored males. Either the disease affected more women and was underfunded, or the disease affected more men and was overfunded, according to the 2021 study published in the Journal of Women’s Health.
Aside from underfunding, conducting robust research into the long-term effects of birth control is complex.
“Historically, people haven’t felt that it’s ethically OK to randomize people to birth control methods in large part because the outcome of unintended pregnancy is greater,” for people who are given the placebo, Bartz says.
Research on birth control misinformation on social media
Social media use is widespread among young adults. More than 90% of Americans between 18 and 29 reported ever using YouTube, while 78% said they had used Instagram, 62% used TikTok and 42% used Twitter, according to a 2023 survey of 5,733 U.S. adults by Pew Research Center.
These years overlap with the demographic of people who are most likely to use birth control. And because the use of contraceptives is less stigmatized today, people are more likely to talk with one another about their questions and concerns or share that information online.
In addition to investigating the general landscape of social media posts about birth control, researchers are also interested in the type of content influencers, who typically have 20,000 or more followers, post, because of their persuasive power over their audiences.
“When influencers disclose personal experiences and beliefs about various topics, audience members tend to form similar attitudes especially when they feel connected to the influencer,” Pfender and M. Marie Devlin write in a 2023 study published in the journal Health Communication.
Below we have curated several studies published in recent years documenting the spread of birth control misinformation on social media. The roundup is followed by a quick reference guide on female contraceptives and their actual potential side effects.
Contraceptive Content Shared on Social Media: An Analysis of Twitter
Melody Huang, et al. Contraception and Reproductive Medicine, February 2024.The study: The authors explore how contraceptive information is shared on X and understand how those posts affect women’s decisions. They analyze a random 1% of publicly available English-language tweets about reversible prescription contraceptive methods, from January 2014 and December 2019. The 4,434 analyzed tweets included at least 200 tweets per birth control method — IUDs, implants, the pill, patch and ring.
The findings: 26.7% of tweets about contraceptive methods discussed decision-making and 20.5% discussed side effects, especially the side effects of IUDs and the depot medroxyprogesterone acetate (DMPA or Depo-Provera) shot. Discussions about the pill, patch or ring prompted more discussions on logistics and adherence. About 6% of tweets explicitly requested information. Tweets about IUDs were most popular in terms of likes.
More importantly, 50.6% of the tweets were posted by contraceptive users, while only 6% came from official health or news sources. Tweets from news or journalistic sources were more frequent than tweets from a health care professional or organization.
Some tweets contained misinformation represented as facts, such as the unsubstantiated claim that IUDs can cause fertility issues. Others were outwardly misogynistic, shaming women and claiming that they wouldn’t be able to have kids because of using hormonal birth control.
One takeaway: “While Twitter may provide valuable insight, with more tweets being created by personal contraceptive users than official healthcare sources, the available information may vary in reliability. Asking patients about information from social media can help reaffirm to patients the importance of social networks in contraceptive decision-making while also addressing misconceptions to improve contraceptive counseling,” the authors write.
What Do Social Media Influencers Say About Birth Control? A Content Analysis of YouTube Vlogs About Birth Control
Emily J. Pfender and M. Marie Devlin. Health Communication, January 2023.The study: To explore what social media influencers shared on YouTube about their experiences with hormonal and non-hormonal methods of birth control, the researchers analyzed 50 vlogs posted between December 2019 and December 2021. Most of the 50 influencers were categorized on YouTube as Lifestyle (72%) and Fitness (16%). They had between 20,000 and 2.2 million subscribers each.
The findings: In total, 74% of the influencers talked about discontinuing hormonal birth control. About 44% said the main reason they were discontinuing birth control was to be more natural, while 32% said they wanted to improve their mental health and 20% were concerned about weight gain.
Forty percent of influencers mentioned using non-hormonal birth control methods such as menstrual cycle tracking, condoms, non-hormonal IUDs and the pull-out method. Twenty percent reported switching from hormonal to non-hormonal methods.
One takeaway: “Our content analysis revealed that discontinuation of hormonal birth control is commonly discussed among [social media influencers] on YouTube and sexual health information from influencers might not provide accurate educational information and tools… this is especially concerning given that social media is young adults’ primary tool for sexual health information. Future research is needed to understand the effects of SMI birth control content on sexual health behaviors,” the authors write.
Hormonal Contraceptive Side Effects and Nonhormonal Alternatives on TikTok: A Content Analysis
Emily J. Pfender, Kate Tsiandoulas, Stephanie R. Morain and Leah R. Fowler. Health Promotion Practice, January 2024.The study: The authors analyzed the content of 100 TikTok videos that used the hashtags #birthcontrolsideeffects and #nonhormonalcontraception. Their goal was to understand the types of content about side effects of hormonal and non-hormonal contraceptives on TikTok.
The findings: The videos averaged about 1 minute and garnered an average of 27,795 likes, 251 comments and 623 shares. For #birthcontrolsideeffects, 80% of the audience was 18 to 24 years old and videos with that hashtag had 43 million views worldwide as of July 7, 2023.
Thirty-two percent of the videos were by regular users (non-influencers), 26 by clinicians, 13% by health coaches and 2% by companies. Only 3% had a sponsorship disclosure and 6% included a medical disclaimer, that the person was not a doctor or was not providing medical advice.
Most of the 100 videos (71%) mentioned hormonal contraception. Among them 51% discussed unspecific hormonal contraceptives, 31% talked about the pill and 11% about hormonal IUDs. Four of the 71 creators explicitly recommended against using hormonal contraceptives.
Claims about hormonal contraceptives were mostly based on personal experience. About 25% of the creators cited no basis for their claims, 23% included outside evidence, including unspecified studies or information from the FDA insert, and 11% used a combination of personal and outside evidence.
Almost half (49%) mentioned discontinuing their hormonal contraception, with negative side effects cited as the most common reason.
The creators talked about mental health issues, weight gain, headaches, and less common risks of various cancers or chronic illness, change in personality and blood clots. They were less likely to mention the positive aspects of birth control.
About 52% of videos mentioned non-hormonal contraception, including copper IUDs and cycle tracking.
Nine of the 100 creators expressed feeling dismissed, pressured, gaslit or insufficiently informed about contraception by medical providers.
One takeaway: “Our findings support earlier work suggesting social media may fuel ‘hormonophobia,’ or negative framing and scaremongering about hormonal contraception and that this phobia is largely driven by claims of personal experience rather than scientific evidence,” the authors write. “Within these hashtag categories, TikTok creators frame their provider interactions negatively. Many indicate feeling ignored or upset after medical appointments, not sufficiently informed about contraceptive options, and pressured to use hormonal contraceptives. This finding aligns with previous social media research and among the general population, suggesting opportunities for improvements in contraceptive counseling.”
Popular Contraception Videos on TikTok: An Assessment of Content Topics
Rachel E. Stoddard, et al. Contraception, January 2024.The study: Researchers analyzed 700 English-language TikTok videos related to hormonal contraception, with a total of 1.2 billion views and 1.5 million comments, posted between October 2019 and December 2021. Their aim was to explore the types of contraception content on TikTok and to understand how the platform influences the information patients take into birth control counseling visits.
The findings: More than half of the videos (52%) were about patient experiences and how to use contraceptives. Other common topics included side effects (35%) and pregnancy (39%).
Only 19% of the videos were created by health care professionals, including midwives, physician assistants and medical doctors, although those videos garnered 41% of the total views, indicating higher engagement. While 93% of health care providers shared educational content, 23% of non-health care providers shared educational content.
One takeaway: “Our findings show an exceptional opportunity for education around contraception for young reproductive-aged individuals, given the accessibility and popularity of these videos. This may also extend to other topics around sex education and family planning, including sexually transmitted infection prevention and treatment and procuring abortion care,” the authors write.
TikTok, #IUD, and User Experience With Intrauterine Devices Reported on Social Media
Jenny Wu, Esmé Trahair, Megan Happ and Jonas Swartz. Obstetrics & Gynecology, January 2023.The study: Researchers used a web-scraping application to collect the top 100 TikTok videos tagged #IUD on April 6, 2022, based on views, comments, likes and shares. Their aim was to understand the perspectives and experiences of people with IUDs shared on TikTok. The videos had a total of 471 million views, 32 million likes and 1 million shares. Their average length was 33 seconds.
The findings: Some 89% of the creators identified as female and nearly 90% were from the United States; 37% were health care professionals; and 78% were 21 years or older.
Video types included patients’ own experiences with IUD removal (32%), educational (30%) and humorous (25%). More videos (38%) had a negative tone compared with 19% with a positive tone. The videos that portrayed negative user experiences emphasized pain and distrust of health care professionals.
Half of the videos were very accurate, while nearly a quarter were inaccurate (the authors did not use the term misinformation).
One takeaway: “The most liked #IUD videos on TikTok portray negative experiences related to pain and informed consent. Awareness of this content can help health care professionals shape education given the high prevalence of TikTok use among patients,” the authors write. “TikTok differs from other platforms because users primarily engage with an algorithmically curated feed individualized to the user’s interests and demographics.”
Types of female birth control
Most female hormonal contraceptives contain the synthetic version of natural female hormones estrogen and progesterone. They affect women’s hormone levels, preventing mature eggs from being released by the ovaries, a process that’s known as ovulation, hence, preventing a possible pregnancy.
Of the two hormones, progesterone (called progestin in synthetic form) is primarily responsible for preventing pregnancy. In addition to playing a role in preventing ovulation, progesterone inhibits sperm from penetrating through the cervix. Estrogen inhibits the development of follicles in the ovaries.
The information below is sourced from the CDC, the National Library of Medicine, the Cleveland Clinic and the Mayo Clinic.
Intrauterine contraception
Also called Long-Acting Reversible Contraception, or LARC, this method works by thickening the cervical mucus so the sperm can’t reach an egg. There are two types of IUDs: hormonal and non-hormonal.
- Levonorgestrel intrauterine system is a T-shaped device that’s placed inside the uterus by a doctor. It releases a small amount of progestin daily to prevent pregnancy. It can stay in place for 3 to 8 years. Its failure rate is 0.1% to 0.4%.
- Copper T intrauterine device is also T-shaped and is placed inside the uterus by a doctor. It does not contain hormones and can stay in place for up to 10 years. Its failure rate is 0.8%.
- Side effects: Copper IUDs may cause more painful and heavy periods, while progestin IUDs may cause irregular bleeding. In the very rare cases of pregnancy while having an IUD, there’s a greater chance of an ectopic pregnancy, which is when a fertilized egg grows outside of the uterus.
Hormonal methods
- The implant is a single, thin rod that’s inserted under the skin of the upper arm. It releases progestin over 3 years. Its failure rate is 0.1%, making it the most effective form of contraception available.
- Side effects: The most common side effect of an implant is irregular bleeding.
- The injection Depo-Provera or “shot” or “Depo” delivers progestin in the buttocks or arms every three months at the doctor’s office. Its failure rate is 4%.
- Side effects: The shot may cause irregular bleeding. The shot is also the only contraceptive that may cause weight gain. It may also be more difficult to predict when fertility returns once the shot is stopped.
- Combined oral contraceptives or “the pill” contain estrogen and progestin. They’re prescribed by a doctor. The pill has to be taken at the same time daily. The pill is not recommended for people who are older than 35 and smoke, have a history of blood clots or breast cancer. Its failure rate is 7%. Among women aged 15 to 44 who use contraception, about 25% use the pill.
- The skin patch is worn on the lower abdomen, buttocks or upper body, releasing progestin and estrogen. It is prescribed by a doctor. A new patch is used once a week for three weeks. No patch is worn for the fourth week. Its failure rate is 7%.
- Hormonal vaginal contraceptive ring releases progestin and estrogen. It’s placed inside the vagina. It is worn for three weeks and taken out on the fourth week. Its typical failure rate is 7%.
- Side effects: Contraceptives with estrogen, including the pill, the patch and the ring, increase the risk of developing blood clots.
- Progestin-only pill or “mini-pill” only has progestin and is prescribed by a doctor. It has to be taken daily at the same time. It may be a good option for women who can’t take estrogen. Its typical failure rate is 7%.
- Opill is the first over-the-counter daily oral contraceptive in the U.S., approved by the Food and Drug Administration in 2023. Opill only has progestin and like other birth control pills, it has to be taken at the same time every day. It should not be used by those who have or have had breast cancer. Its failure rate is 7%.
- Side effects: The most common side effect of progestin-only pills is irregular bleeding, although the bleeding tends to be light.
Non-hormonal birth control methods include using barriers such as a diaphragm or sponge, condoms and spermicides, withdrawal, and menstrual cycle tracking. Emergency contraception, including emergency contraception pills (the morning-after pill), is not a regular method of birth control.
Additional research studies to consider
Population Attitudes Toward Contraceptive Methods Over Time on a Social Media Platform
Allison A. Merz, et al. American Journal of Obstetrics & Gynecology, December 2020.Social Media and the Intrauterine Device: A YouTube Content Analysis
Brian T. Nguyen and Allison J. Allen. BMJ Sexual and Reproductive Health, November 2017.This article first appeared on The Journalist’s Resource and is republished here under a Creative Commons license.
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Mythbusting Moldy Food
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Most Food Should Not Be Fuzzy
In yesterday’s newsletter, we asked you for your policy when it comes to mold on food (aside from intentional mold, e.g. blue cheese etc), and the responses were interesting:
- About 49% said “throw the whole thing away no matter what it is; it is dangerous”
- About 24% said “cut the mold off and eat the rest of whatever it is”
- The remainder were divided equally between “eat it all; keep the immune system on its toes” and “cut the mold off bread, but moldy animal products are dangerous”
So what does the science say?
Some molds are safe to eat: True or False?
True! We don’t think this is contentious so we’ll not spend much time on it, but just for the sake of being methodical: foods that are supposed to have mold on, including many kinds of cheese and even some kinds of cured meat (salami is an example; that powdery coating is mold).
We could give a big list of safe and unsafe molds, but that would be a list of names and let’s face it, they don’t introduce themselves by name.
However! The litmus test of “is it safe to eat” is:
Did you acquire it with this mold already in place and exactly as expected and advertised?
- If so, it is safe to eat (unless you have an allergy or such)
- If not, it is almost certainly not safe to eat
(more on why, later)
The “sniff test” is a good way to tell if moldy food is bad: True or False?
False. Very false. Because of how the sense of smell works.
You may feel like smell is a way of knowing about something at a distance, but the only way you can smell something is if particles of it are physically connecting with your olfactory receptors inside you. Yes, that has unfortunate implications about bathroom smells, but for now, let’s keep our attention in the kitchen.
If you sniff a moldy item of food, you will now have its mold spores inside your respiratory system. You absolutely do not want them there.
If we cut off the mold, the rest is safe to eat: True or False?
True or False, depending on what it is:
- Hard vegetables (e.g carrots, cabbage), and hard cheeses (e.g. Gruyère, Gouda) – cut off with an inch margin, and it should be safe
- Soft vegetables (e.g. tomatoes, and any vegetables that were hard but are now soft after cooking) – discard entirely; it is unsafe
- Anything else – discard entirely; it is unsafe
The reason for this is because in the case of the hard products mentioned, the mycelium roots of the mold cannot penetrate far.
In the case of the soft products mentioned, the surface mold is “the tip of the iceberg”, and the mycelium roots, which you will not usually be able to see, will penetrate the rest of it.
“Anything else” seems like quite a sweeping statement, but fruits, soft cheeses, yogurt, liquids, jams and jellies, cooked grains and pasta, meats, and yes, bread, are all things where the roots can penetrate deeply and easily. Regardless of you only being able to see a small amount, the whole thing is probably moldy.
The USDA has a handy downloadable factsheet:
Molds On Food: Are They Dangerous?
Eating a little mold is good for the immune system: True or False?
False, generally. There are of course countless types of mold, but not only are many of them pathogenic (mycotoxins), but also, a food that has mold will usually also have pathogenic bacteria along with the mold.
See for example: Occurrence, Toxicity, and Analysis of Major Mycotoxins in Food
Food poisoning will never make you healthier.
But penicillin is safe to eat: True or False?
False, and also penicillin is not the mold on your bread (or other foods).
Penicillin, an antibiotic* molecule, is produced by some species of Penicillium sp., a mold. There are hundreds of known species of Penicillium sp., and most of them are toxic, usually in multiple ways. Take for example:
Penicillium roqueforti PR toxin gene cluster characterization
*it is also not healthy to consume antibiotics unless it is seriously necessary. Antibiotics will wipe out most of your gut’s “good bacteria”, leaving you vulnerable. People have died from C. diff infections for this reason. So obviously, if you really need to take antibiotics, take them as directed, but if not, don’t.
See also: Four Ways Antibiotics Can Kill You
One last thing…
It may be that someone reading this is thinking “I’ve eaten plenty of mold, and I’m fine”. Or perhaps someone you tell about this will say that.
But there are two reasons this logic is flawed:
- Survivorship bias (like people who smoke and live to 102; we just didn’t hear from the 99.9% of people who smoke and die early)
- Being unaware of illness is not being absent of illness. Anyone who’s had an alarming diagnosis of something that started a while ago will know this, of course. It’s also possible to be “low-level ill” often and get used to it as a baseline for health. It doesn’t mean it’s not harmful for you.
Stay safe!
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Widen the Window – by Dr. Elizabeth Stanley
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Firstly, about the title… That “window” that the author bids us “widen” is not a flowery metaphor, but rather, is referring to the window of exhibited resilience to stress/trauma; the “window” in question looks like an “inverted U” bell-curve on the graph.
In other words: Dr. Stanley’s main premise here is that we respond best to moderate stress (i.e: in that window, the area under the curve!), but if there is too little or too much, we don’t do so well. The key, she argues, is widening that middle part (expanding the area under the curve) in which we perform optimally. That way, we can still function in a motivated fashion without extrinsic threats, and we also don’t collapse under the weight of overwhelm, either.
The main strength of this book, however, lies in its practical exercises to accomplish that—and more.
“And more”, because the subtitle also promised recovery from trauma, and the author delivers in that regard too. In this case, it’s about widening that same window, but this time to allow one’s parasympathetic nervous system to recognize that the traumatic event is behind us, and no longer a threat; we are safe now.
Bottom line: if you would like to respond better to stress, and/or recover from trauma, this book is a very good tool.
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New Year, New Health Habits?
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
It’s that time of the year, and many of us hope to make this our healthiest year yet—or at least significantly improve it in some particular area that’s important to us! So, what news from the health world?
The rise of GLP-1 agonists continues
GLP-1 agonists have surged in popularity in the past year, and it looks like that trend is set to continue in the new one. The title of the below-linked pop-science article is slightly misleading, it’s not “almost three quarters of UK women”, but rather, “72% of the women using the digital weight loss platform Juniper”, which means the sample is confined to people interested in weight loss. Still, of those interested in weight loss, 72% is a lot, and the sample size was over 1000:
Read in full: New Year, new approach to weight loss: Almost three quarters of UK women are considering using GLP-1s in 2025
Related: 5 ways to naturally boost the “Ozempic Effect” ← these natural methods “hack” the same metabolic pathways as GLP-1 agonists do (it has to do with incretin levels), causing similar results
The lesser of two evils
Smoking is terrible, for everything. Vaping is… Not great, honestly, but as the below-discussed study shows, at the very least it results in much less severe respiratory symptoms than actual smoking. For many, vaping is a halfway-house to actually quitting; for some, it’s just harm reduction, and that too can be worthwhile.
We imagine that probably very few 10almonds readers smoke cigarettes, but we know quite a few use cannabis, which is discussed also:
Read in full: Switching to e-cigarettes may ease respiratory symptoms, offering hope for smokers
Related: Vaping: A Lot Of Hot Air? ← we look at the pros, cons, and popular beliefs that were true a little while ago but now they’re largely not (because of regulatory changes re what’s allowed in vapes)
Sometimes, more is more
The below-linked pop-science article has a potentially confusingly-worded title that makes it sound like increased exercise duration results in decreasing marginal returns (i.e., after a certain point, you’re getting very limited extra benefits), but in fact the study says the opposite.
Rather, increased moderate exercise (so, walking etc) results in a commensurately decreasing weight and a decreasing waistline.
In short: walk more, lose more (pounds and inches). The study examined those who moved their bodies for 150–300 minutes per week:
Read in full: Increased exercise duration linked to decreasing results in weight and waistline
Related: The Doctor Who Wants Us To Exercise Less, & Move More
Take care!
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Creamy Fortifying Cauliflower Soup
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As delicious as it is super-easy to make, this one is full of protein, fiber, healthy fats, and some of the most health-giving spices around.
You will need
- 1 quart low-sodium vegetable stock
- 1 large cauliflower, cut into florets
- 1 large onion, finely chopped
- 2 cans cannellini (or other white) beans, drained and rinsed
- 1 cup raw cashews, soaked in hot water for at least 5 minutes, and drained (if allergic, substitute chickpeas)
- 1 bulb (yes, a whole bulb) garlic, roughly chopped
- 5 tbsp nutritional yeast
- 10 fresh sprigs of thyme (keep them whole!)
- 1 large fresh sprig of rosemary (keep this whole too!)
- zest of 1 lemon
- 1 tbsp red chili flakes
- 1 tbsp black pepper, coarse ground
- 1 tsp MSG or 2 tsp low-sodium salt
- ½ tsp ground turmeric
- Extra virgin olive oil
Method
(we suggest you read everything at least once before doing anything)
1) Tightly tie up the sprigs of rosemary and thyme with kitchen twine (shining a bright light on it and asking it invasive questions is optional)
2) Heat some olive oil to a medium heat in your biggest sauté pan or similar. Add the onions, and cook for about 10 minutes, stirring as necessary. We are not trying to outright caramelize them here, but we do want them browned a little.
3) Add the garlic and cook for another 2 minutes, stirring frequently.
4) Add the vegetable stock, and stir, ensuring no onion is stuck to the base of the pan. Add the cauliflower, cashews, beans, nooch, pepper, turmeric, and MSG/salt, stirring to combine. Don’t worry if the cauliflower isn’t all submerged; it’ll be fine in a little while.
5) Add the herbs, submerging them in the soup (still tied up bouquet garni style).
6) Bring to a boil, reduce to a simmer and cook for 15–20 minutes; the cauliflower will be soft when it’s ready.
7) Remove the bouquet garni, and blend the soup until thick and creamy. You can do this with an immersion blender, but to get the smoothest soup, you’ll need to use a stand blender. Either ensure yours is safe for hot liquids, or else allow to cool, blend, and reheat later. This is important, as otherwise your blender could explode.
8) Serve, using the lemon zest and chili for the garnish:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Some Surprising Truths About Hunger And Satiety
- Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)
- Our Top 5 Spices: How Much Is Enough For Benefits?
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
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When A Period Is Very Late (Post-Menopause)
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Knowledge Is
PowerSafety, Post-Menopause TooNote: this article will be most relevant for a subset of our subscribership, but it’s a very large subset, so we’re going to go ahead and address the reader as “you”.
If, for example, you are a man and this doesn’t apply to you, we hope it will interest you anyway (we imagine there are women in your life).
PS: the appendicitis check near the end, works for anyone with an appendix
We’ve talked before about things that come with (and continue after) menopause:
- What You Should Have Been Told About The Menopause Beforehand
- What Menopause Does To The Heart
- Alzheimer’s Sex Differences May Not Be What They Appear
But what’s going on if certain menstrual symptoms reappear post-menopause (e.g. after more than a year with no menstruation)?
Bleeding
You should not, of course, be experiencing vaginal bleeding post-menopause. You may have seen “PSA” style posts floating around social media warning that this is a sign of cancer. And, it can be!
But it’s probably not.
Endometrial cancer (the kind that causes such bleeding) affects 2–3% of women, and of those reporting post-menopausal bleeding, the cause is endometrial cancer only 9% of those times.
So in other words, it’s not to be ignored, but for 9 people out of 10 it won’t be cancer:
Read more: Harvard Health | Postmenopausal bleeding: Don’t worry—but do call your doctor
Other more likely causes are uterine fibroids or polyps. These are unpleasant but benign, and can be corrected with surgery if necessary.
The most common cause, however is endometrial and/or vaginal atrophy resulting in tears and bleeding.
Tip: Menopausal HRT will often correct this.
Read more: The significance of “atrophic endometrium” in women with postmenopausal bleeding
(“atrophic endometrium” and “endometrial atrophy” are the same thing)
In summary: no need to panic, but do get it checked out at your earliest convenience. This is not one where we should go “oh that’s weird” and ignore.
Cramps
If you are on menopausal HRT, there is a good chance that these are just period cramps. They may feel different than they did before, because you didn’t ovulate and thus you’re not shedding a uterine lining now, but your body is going to do its best to follow the instructions given by the hormones anyway (hormones are just chemical messengers, after all).
If it is just this, then they will probably settle down to a monthly cycle and become quite predictable.
Tip: if it’s the above, then normal advice for period cramps will go here. We recommend ginger! It’s been found to be as effective as Novafen (a combination drug of acetaminophen (Tylenol), caffeine, and ibuprofen), in the task of relieving menstrual pain:
See: Effect of Ginger and Novafen on menstrual pain: A cross-over trial
It could also be endometriosis. Normally this affects those of childbearing age, but once again, exogenous hormones (as in menopausal HRT) can fool the body into doing it.
If you are not on menopausal HRT (or sometimes even if you are), uterine fibroids (as discussed previously) are once again a fair candidate, and endometriosis is also still possible, though less likely.
Special last note
Important self-check: if you are experiencing a sharp pain in that general area and are worrying if it is appendicitis (also a possibility), then pressing on the appropriately named McBurney’s point is a first-line test for appendicitis. If, after pressing, it hurts a lot more upon removal of pressure (rather than upon application of pressure), this is considered a likely sign of appendicitis. Get thee to a hospital, quickly.
And if it doesn’t? Still get it checked out at your earliest convenience, of course (better safe than sorry), but you might make an appointment instead of calling an ambulance.
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
