Glutathione: More Than An Antioxidant
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Glutathione’s Benefits: The Usual And The Unique
Glutathione is a powerful antioxidant that does all the things we might reasonably expect an antioxidant to do, plus some beneficial quirks of its own.
We do make glutathione in our bodies, but we can also get it from our diet, and of course, we can also supplement it.
What foods is it in?
It’s in a lot of foods, but some top examples include:
- turmeric
- avocado
- asparagus
- almonds
- cruciferous vegetables
- watermelon
- garlic
For a fuller list and discussion, see:
What does it do?
Let’s start with the obvious; as with most things that are antioxidant, it is also anti-inflammatory. Increasing or decreasing glutathione levels is associated with decreased or increased inflammation, respectively. For example:
It being anti-inflammatory also means it can be beneficial in calming autoimmune disorders:
Glutathione: a key player in autoimmunity
And to complete the triad of “those three things that generally go together”, yes, this means it also has anticancer potential, but watch out!
❝Although in healthy cells [glutathione] is crucial for the removal and detoxification of carcinogens, elevated [glutathione] levels in tumor cells are associated with tumor progression and increased resistance to chemotherapeutic drugs❞
~ Dr. Miroslava Cuperlovic-Culf et al.
Read in full: Role of Glutathione in Cancer: From Mechanisms to Therapies
So in other words, when it comes to cancer risk management, glutathione is a great preventative, but the opposite of a cure.
What were those “beneficial quirks of its own”?
They are mainly twofold, and the first is that it improves insulin sensitivity. There are many studies showing this, but here’s a recent one from earlier this year:
The Role of Glutathione and Its Precursors in Type 2 Diabetes
The other main “beneficial quirk of its own” is that it helps prevent and/or reverse non-alcoholic fatty liver disease, as in this study from last year:
Because of glutathione’s presence in nuts, fruits, and vegetables, this makes it a great thing to work in tandem with a dietary approach to preventing/reversing NAFLD, by the way:
Anything else?
It’s being investigated as a potential treatment for Parkinson’s disease symptoms, but the science is young for this one, so there is no definitive recommendation yet in this case. If you’re interested in that, though, do check out the current state of the science at:
Potential use of glutathione as a treatment for Parkinson’s disease
Is it safe?
While there is no 100% blanket statement of safety that can ever be made about anything (even water can kill people, and oxygen ultimately kills everyone that something else doesn’t get first), glutathione has one of the safest general safety profiles possible, with the exception we noted earlier (if you have cancer, it is probably better to skip this one unless an oncologist or similar advises you otherwise).
As ever, do speak with your doctor/pharmacist to be sure in any case, though!
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon 😎
Enjoy!
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Where Nutrition Meets Habits!
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Where Nutrition Meets Habits…
This is Claudia Canu, MSc., INESEM. She’s on a mission to change the way we eat:
Often, diet is a case of…
- Healthy
- Easy
- Cheap
(choose two)
She wants to make it all three, and tasty too. She has her work cut out for her, but she’s already blazed quite a trail personally:
❝Nine months before turning 40 years old, I set a challenge for myself: Arrive to the day I turn 40 as the best possible version of myself, physically, mentally and emotionally.❞
~ Claudia Canu
In Her Own Words: My Journey To My Healthy 40s
And it really was quite a journey:
- September: Changes That Destabilize
- October: Looking for Focus
- November: New Habits
- December: Analyzing The First Results
- January: Traveling & Perfectionism
- February: Habits & Goals
- March: Connection, Cravings, & Organization
- April: Physical & Emotional Changes After 7 Months
- May: Reflections & Considerations
- June: Challenge Is Over
For those of us who’d like the short-cut rather than a nine-month quasi-spiritual journey… based on both her experience, and her academic and professional background in nutrition, her main priorities that she settled on were:
- Making meals actually nutritionally balanced, which meant re-thinking what she thought a meal “should” be
- Making nutritionally balanced meals that didn’t require a lot of skill and/or resources
- That’s it!
But, easier said than done… Where to begin?
She shares an extensive list of recipes, from meals to snacks (I thought I was the only one who made coffee overnight oats!), but the most important thing from her is:
Claudia’s 10 Guiding Principles:
- Buy only fresh ingredients that you are going to cook yourself. If you decide to buy pre-cooked ones, make sure they do not have added ingredients, especially sugar (in all its forms).
- Use easy and simple cooking methods.
- Change ingredients every time you prepare your meals.
- Prepare large quantities for three or four days.
- Store the food separately in tightly closed Tupperware.
- Organize yourself to always have ready-to-eat food in the fridge.
- When hungry, mix the ingredients in the ideal amounts to cover the needs of your body.
- Chew well and take the time to taste your food.
- Eat foods that you like and enjoy.
- Do not overeat but don’t undereat either.
We have only two quibbles with this fine list, which are:
About Ingredients!
Depending on what’s available around you, frozen and/or tinned “one-ingredient” foods can be as nutritional as (if not more nutritional than) fresh ones. By “one-ingredient” foods here we mean that if you buy a frozen pack of chopped onions, the ingredients list will be: “chopped onions”. If you buy a tin of tomatoes, the ingredients will say “Tomatoes” or at most “Tomatoes, Tomato Juice”, for example.
She does list the ingredients she keeps in; the idea that with these in the kitchen, you’ll never be in the position of “oh, we don’t have much in, I guess it’s a pizza delivery night” or “well there are some chicken nuggets at the back of the freezer”.
Check Out And Plan: 10 Types Of Ingredients You Should Always Keep In Your Kitchen
Here Today, Gone Tomorrow?
Preparing large quantities for three or four days can result in food for one or two days if the food is unduly delicious
But! Claudia has a remedy for that:
Read: How To Eliminate Food Cravings And What To Do When They Win
Anyway, there’s a wealth of resources in the above-linked pages, so do check them out!
Perhaps the biggest take-away is to ask yourself:
“What are my guiding principles when it comes to food?”
If you don’t have a ready answer, maybe it’s time to tackle that—whether Claudia’s way or your own!
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The Blue Zones Kitchen – by Dan Buettner
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We’ve previously reviewed Buettner’s other book, The Blue Zones: 9 Lessons For Living Longer From The People Who’ve Lived The Longest, and with this one, it’s now time to focus on the dietary aspect.
As the title and subtitle promises, we get 100 recipes, inspired by Blue Zone cuisines. The recipes themselves have been tweaked a little for maximum healthiness, eliminating some ingredients that do crop up in the Blue Zones but are exceptions to their higher average healthiness rather than the rule.
The recipes are arranged by geographic zone rather than by meal type, so it might take a full read-through before knowing where to find everything, but it makes it a very enjoyable “coffee-table book” to browse, as well as being practical in the kitchen. The ingredients are mostly easy to find globally, and most can be acquired at a large supermarket and/or health food store. In the case of substitutions, most are obvious, e.g. if you don’t have wild fennel where you are, use cultivated, for example.
In the category of criticism, it appears that Buettner is very unfamiliar with spices, and so has skipped them almost entirely. We at 10almonds could never skip them, and heartily recommend adding your own spices, for their health benefits and flavors. It may take a little experimentation to know what will work with what recipes, but if you’re accustomed to cooking with spices normally, it’s unlikely that you’ll err by going with your heart here.
Bottom line: we’d give this book a once-over for spice additions, but aside from that, it’s a fine book of cuisine-by-location cooking.
Click here to check out The Blue Zones Kitchen, and get cooking into your own three digits!
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What to Know About Stillbirths
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Series: Stillbirths:When Babies Die Before Taking Their First Breath
The U.S. has not prioritized stillbirth prevention, and American parents are losing babies even as other countries make larger strides to reduce deaths late in pregnancy.
Every year, more than 20,000 pregnancies in the U.S. end in a stillbirth, the death of an expected child at 20 weeks or more of pregnancy. Research shows as many as 1 in 4 stillbirths may be preventable. We interviewed dozens of parents of stillborn children who said their health care providers did not tell them about risk factors or explain what to watch for while pregnant. They said they felt blindsided by what followed. They did not have the information needed to make critical decisions about what happened with their baby’s body, about what additional testing could have been done to help determine what caused the stillbirth, or about how to navigate the process of requesting important stillbirth documents.
This guide is meant to help fill the void of information on stillbirths. It’s based on more than 150 conversations with parents, health care providers, researchers and other medical experts.
Whether you’re trying to better prepare for a pregnancy or grieving a loss, we hope this will help you and your family. This guide does not provide medical advice. We encourage you to seek out other reliable resources and consult with providers you trust.
We welcome your thoughts and questions at mailto:stillbirth@propublica.org. You can share your experience with stillbirth with us. If you are a health care provider interested in distributing this guide, let us know if we can help.
Table of contents:
- What Is Stillbirth?
- Are Stillbirths Preventable?
- What to Expect After a Stillbirth.
- Grieving After a Stillbirth.
- What You Might Say and Do After a Loved One Experiences a Stillbirth.
What Is Stillbirth?
Many people told us that the first time they heard the term stillbirth was after they delivered their stillborn baby. In many cases, the lack of information and awareness beforehand contributed to their heartache and guilt afterward.
Stillbirth is defined in the U.S. as the death of a baby in the womb at 20 weeks or more of pregnancy. Depending on when it happens, stillbirth is considered:
- Early: 20-27 weeks of pregnancy.
- Late: 28-36 weeks of pregnancy.
- Term: 37 or more weeks of pregnancy.
About half of all stillbirths in the U.S. occur at 28 weeks or later.
What is the difference between a stillbirth and a miscarriage?
Both terms describe pregnancy loss. The distinction is when the loss occurs. A miscarriage is typically defined as a loss before the 20th week of pregnancy, while stillbirth is after that point.
How common is stillbirth?
Each year, about 1 in 175 deliveries in the U.S. are stillbirths — that’s about 60 stillborn babies every day — making it one of the most common adverse pregnancy outcomes, but it is rarely discussed.
If you are surprised by that fact, you are not alone. Many people we spoke to did not know how common stillbirths are. Leandria Lee of Texas said she spent her 2021 pregnancy unaware that her daughter, Zuri Armoni, could die in the last phase of her pregnancy.
“If I was prepared to know that something could happen, I don’t think it would have been as bad. But to not know and then it happens, it affects you,” she said of her stillbirth at 35 weeks.
Some doctors have told us they don’t introduce the possibility of a stillbirth because they don’t want to create additional anxiety for patients.
Other doctors say withholding information leaves patients unprepared.
“We have this idea that we can’t scare the patient, which to me is very paternalistic,” said Dr. Heather Florescue, an OB-GYN near Rochester, New York, who works to inform doctors and patients about stillbirth prevention.
What causes stillbirths?
There is a lot we don’t know about stillbirths because there hasn’t been enough research. The cause of the stillbirth is unknown in about 1 in 3 cases.
What we do know is that a number of factors may cause or increase the risk of a stillbirth, including:
- The baby not growing as expected.
- Placental abnormalities or problems with the umbilical cord.
- Genetic or structural disorders that cause developmental issues.
- High blood pressure before pregnancy or preeclampsia, a potentially fatal complication that usually appears late in pregnancy and causes high blood pressure.
- Diabetes before or during pregnancy.
- An infection in the fetus, the placenta or the pregnant person.
- Smoking.
- Being 35 or older.
- Obesity.
- Being pregnant with more than one baby.
But not all doctors, hospitals or health departments perform tests to identify the potential cause of a stillbirth or determine if it could have been prevented. Even when a cause is identified, fetal death records are rarely updated. This means data is sometimes inaccurate. Researchers strongly encourage doctors to perform a stillbirth evaluation, which includes an examination of the placenta and umbilical cord, a fetal autopsy and genetic testing.
If your hospital or doctor does not proactively offer one or more of these exams, you can ask them to conduct the tests. Research shows that placental exams may help establish a cause of death or exclude a suspected one in about 65% of stillbirths, while autopsies were similarly useful in more than 40% of cases.
Are Stillbirths Preventable?
Not all stillbirths are preventable, but some are. For pregnancies that last 37 weeks or more, one study found that nearly half of stillbirths are potentially preventable.
Dr. Joanne Stone, who last year was president of the Society of Maternal-Fetal Medicine, leads the country’s first Rainbow Clinic at Mount Sinai Hospital in New York. The clinic is modeled on similar facilities in the United Kingdom that care for people who want to conceive again after a stillbirth. She said many doctors used to think there was nothing they could do to prevent stillbirth.
“People just looked at it like, ‘Oh, it was an accident, couldn’t have been prevented,’” said Stone, who also is the system chair of the obstetrics, gynecology and reproductive science department at the Icahn School of Medicine. “But we know now there are things that we can do to try to prevent that from happening.”
She said doctors can:
- More closely monitor patients with certain risk factors, like high blood pressure, diabetes or obesity.
- Ask about prior infant loss or other obstetrical trauma.
- Carefully assess whether a baby’s growth is normal.
- Work to diagnose genetic anomalies.
- Teach patients how to track their baby’s movements and encourage them to speak up if they notice activity has slowed or stopped.
- Deliver at or before 39 weeks if there are concerns.
What are the risks of stillbirth over the course of a pregnancy?
The risk of a stillbirth increases significantly toward the end of pregnancy, especially after 39 weeks. The risk is higher for people who get pregnant at 35 or older. The risk begins to climb even earlier, around 36 weeks, for people pregnant with twins.
What you and your doctor can do to reduce the risk of stillbirth.
While federal agencies in the U.S. have yet to come up with a checklist that may help reduce the risk of stillbirth, the Stillbirth Centre of Research Excellence in Australia has adopted a Safer Baby Bundle that lists five recommendations:
- Stop smoking.
- Regularly monitor growth to reduce the risk of fetal growth restriction, when the fetus is not growing as expected.
- Understand the importance of acting quickly if fetal movement decreases.
- Sleep on your side after 28 weeks.
- Talk to your doctor about when to deliver. Depending on your situation, it may be before your due date.
The American College of Obstetricians and Gynecologists has compiled a list of tests and techniques doctors can use to try to reduce the risk of a stillbirth. They include:
- A risk assessment to identify prenatal needs.
- A nonstresstest, which checks the fetus’s heart rate and how it changes as the fetus moves.
- A biophysical profile, which is done with an ultrasound to measure body movement, muscle tone and breathing, along with amniotic fluid volume.
The group stressed that there is no test that can guarantee a stillbirth won’t happen and that individual circumstances should determine what tests are run.
Are some people at higher risk for stillbirth?
Black women are more than twice as likely to have a stillbirth as white women. There are a number of possible explanations for that disparity, including institutional bias and structural racism, and a patient’s pre-pregnancy health, socioeconomic status and access to health care. In addition, research shows that Black women are more likely than white women to experience multiple stressful life events while pregnant and have their concerns ignored by their health care provider. Similar racial disparities drive the country’s high rate of maternal mortality.
How to find a provider you trust.
Finding a doctor to care for you during your pregnancy can be a daunting process. Medical experts and parents suggest interviewing prospective providers before you decide on the right one.
Here is a short list of questions you might want to ask a potential OB-GYN:
- What is the best way to contact you if I have questions or concerns?
- How do you manage inquiries after hours and on weekends? Do you see walk-ins?
- How do you manage prenatal risk assessments?
- What should I know about the risks of a miscarriage or stillbirth?
- How do you decide when a patient should be induced?
If a provider doesn’t answer your questions to your satisfaction, don’t be reluctant to move on. Dr. Ashanda Saint Jean, chair of the obstetrics and gynecology department at HealthAlliance Hospitals of the Hudson Valley in New York, said she encourages her patients to find the provider that meets their needs.
“Seek out someone that is like-minded,” said Saint Jean “It doesn’t have to be that they’re the same ethnicity or the same race, but like-minded in terms of the goals of what that patient desires for their own health and prosperity.”
What to know in the last trimester.
The last trimester can be an uncomfortable and challenging time as the fetus grows and you get increasingly tired. During this critical time, your provider should talk to you about the following topics:
- Whether you need a nonstress test to determine if the fetus is getting enough oxygen.
- The best way to track fetal movements.
- What to do if your baby stops moving.
- Whether you are at risk for preeclampsia or gestational diabetes.
Rachel Foran’s child, Eoin Francis, was stillborn at 41 weeks and two days. Foran, who lives in New York, said she believes that if her doctor had tracked her placenta, and if she had understood the importance of fetal movement, she and her husband might have decided to deliver sooner.
She remembers that her son was “very active” until the day before he was stillborn.
“I would have gone in earlier if someone had told me, ‘You’re doing this because the baby could die,’” she said of tracking fetal movement. “That would have been really helpful to know.”
Researchers are looking at the best way to measure the health, blood flow and size of the placenta, but studies are still in their early stages.
“If someone had been doing that with my son’s,” Foran said, “my son would be alive.”
A placental exam and an autopsy showed that a small placenta contributed to Foran’s stillbirth.
How often should you feel movement?
Every baby and each pregnancy are different, so it is important to get to know what levels of activity are normal for you. You might feel movement around 20 weeks. You’re more likely to feel movement when you’re sitting or lying down. Paying attention to movement during the third trimester is particularly important because research shows that changes, including decreased movement or bursts of excessive activity, are associated with an increased risk of stillbirth. Most of the time, it’s nothing. But sometimes it can be a sign that your baby is in distress. If you’re worried, don’t rely on a home fetal doppler to reassure you. Reach out to your doctor.
Saint Jean offers a tip to track movement: “I still tell patients each day to lay on their left side after dinner and record how many times their baby moves, because then that will give you an idea of what’s normal for your baby,” she said.
Other groups recommend using the Count the Kicks app as a way of tracking fetal movements and establishing what is normal for that pregnancy. Although there is no scientific consensus that counting kicks can prevent stillbirths, the American College of Obstetricians and Gynecologists and other groups recommend that patients be aware of fetal movement patterns.
Dr. Karen Gibbins is a maternal-fetal medicine specialist at Oregon Health & Science University who in 2018 had stillborn son named Sebastian. She said the idea that babies don’t move as much at the end of pregnancy is a dangerous myth.
“You might hear that babies slow down at the end,” she said. “They don’t slow down. They just have a little less space. So their movements are a little different, but they should be as strong and as frequent.”
What to Expect After a Stillbirth
What might happen at the hospital?
Parents are often asked to make several important decisions while they are still reeling from the shock and devastation of their loss. It’s completely understandable if you need to take some time to consider them.
Some other things you can ask for (if medical personnel don’t offer them) are:
- Blood work, a placental exam, an autopsy and genetic testing.
- A social worker or counselor, bereavement resources and religious or chaplain support.
- The option to be isolated from the labor rooms.
- Someone to take photos of you and your baby, typically either a nurse or an outside group.
- A small cooling cot that allows parents to spend more time with their babies after a stillbirth. If one is not available, you can ask for ice packs to put in the swaddle or the bassinet.
- A mold of your baby’s hands and feet.
- Information about burial or cremation services.
- Guidance on what to do if your milk comes in.
Getting an autopsy after a stillbirth.
Whether to have an autopsy is a personal decision. It may not reveal a cause of death, but it might provide important information about your stillbirth and contribute to broader stillbirth research. Autopsies can be useful if you are considering another pregnancy in the future. Families also told us that an autopsy can help parents feel they did everything they could to try to understand why their baby died.
But several families told us their health care providers didn’t provide them with the right information to help with that decision. Some aren’t trained in the advantages of conducting an autopsy after a stillbirth, or in when and how to sensitively communicate with parents about it. Some, for example, don’t explain that patients can still have an open-casket funeral or other service after an autopsy because the incisions can easily be covered by clothing. Others may not encourage an autopsy because they think they already know what caused the stillbirth or don’t believe anything could have been done to prevent it. In addition, not all hospitals have the capacity to do an autopsy, but there may be private autopsy providers that can perform one at an additional cost.
You can read more about autopsies in our reporting.
Paying for an autopsy after a stillbirth.
If you decide you want an autopsy, you may wonder whether you need to pay out-of-pocket for it. Several families told us their providers gave them incomplete or incorrect information. Many larger or academic hospitals offer autopsies at no cost to patients. Some insurance companies also cover the cost of an autopsy after a stillbirth.
When hospitals don’t provide an autopsy, they may give you names of private providers. That was the case for Rachel Foran. The hospital gave her and her husband a list of numbers to call if they wanted to pay for an autopsy themselves. The process, she said, shocked her.
“I had just delivered and we had to figure out what to do with his body,” Foran said. “It felt totally insane that that was what we had to do and that we had to figure it out on our own.”
An independent autopsy, records show, cost them $5,000.
What is a certificate of stillbirth and how do I get one?
A fetal death certificate is the official legal document that records the death. This is the document used to gather data on and track the number of stillbirths in the country. Many states also issue a certificate of stillbirth or a certificate of birth resulting in stillbirth, which acknowledge the baby’s birth. Families told us they appreciated having that document, since typical birth certificates are not issued for stillbirths. You can usually request a certificate from the vital records office.
Grieving After a Stillbirth
What are the effects of stillbirths on parents and families?
Over and over, families told us the effects of losing a baby can reverberate for a lifetime.
Bereavement support groups may help provide a space to share experiences and resources. Hospitals and birth centers may suggest a local grief group.
We talked with Anna Calix, a maternal health expert who became active in perinatal loss prevention after her son Liam was stillborn on his due date in 2016. Calix leads grief support groups for people of color in English and Spanish.
She suggested rededicating the time you would have spent taking care of a new baby to the grief process.
“You can do that by addressing your own thoughts and feelings and really experiencing those feelings,” Calix said. “We like to push those feelings away or try to do something to distract and avoid, but no matter what we do, the feelings are there.”
It’s important, she said, to give yourself permission to grow your connection with your child and work through thoughts of guilt or blame.
What You Might Say and Do After a Loved One Experiences a Stillbirth
Finding the right words can be difficult. The following are a few suggestions from parents who went through a stillbirth.
Helpful:
- Acknowledge the loss and offer condolences.
- Ask if the baby was named and use the name.
- Allow space for the family to talk about their baby.
Unhelpful:
- Avoid talking about the baby.
- Minimize the loss or compare experiences.
- Start statements with “at least.”
Suggested phrases to avoid:
- “You’re young. You can have more kids.”
- “At least you have other children.”
- “These things just happen.”
- “Your baby is in a better place now.”
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Migraine Mythbusting
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Migraine: When Headaches Are The Tip Of The Neurological Iceberg
Yesterday, we asked you “What is a migraine?” and got the above-depicted, below-described spread of responses:
- Just under 46% said “a headache, but above a certain level of severity”
- Just under 23% said “a headache, but caused by a neurological disorder”
- Just over 21% said “a neurological disorder that can cause headaches”
- Just under 10% said “a headache, but with an attention-grabbing name”
So… What does the science say?
A migraine is a headache, but above a certain level of severity: True or False?
While that’s usually a very noticeable part of it… That’s only one part of it, and not a required diagnostic criterion. So, in terms of defining what a migraine is, False.
Indeed, migraine may occur without any headache, let alone a severe one, for example: Abdominal Migraine—though this is much less well-researched than the more common with-headache varieties.
Here are the defining characteristics of a migraine, with the handy mnemonic 5-4-3-2-1:
- 5 or more attacks
- 4 hours to 3 days in duration
- 2 or more of the following:
- Unilateral (affects only one side of the head)
- Pulsating
- Moderate or severe pain intensity
- Worsened by or causing avoidance of routine physical activity
- 1 or more of the following:
- Nausea and/or vomiting
- Sensitivity to both light and sound
Source: Cephalalgia | ICHD-II Classification: Parts 1–3: Primary, Secondary and Other
As one of our subscribers wrote:
❝I have chronic migraine, and it is NOT fun. It takes away from my enjoyment of family activities, time with friends, and even enjoying alone time. Anyone who says a migraine is just a bad headache has not had to deal with vertigo, nausea, loss of balance, photophobia, light sensitivity, or a host of other symptoms.❞
Migraine is a neurological disorder: True or False?
True! While the underlying causes aren’t known, what is known is that there are genetic and neurological factors at play.
❝Migraine is a recurrent, disabling neurological disorder. The World Health Organization ranks migraine as the most prevalent, disabling, long-term neurological condition when taking into account years lost due to disability.
Considerable progress has been made in elucidating the pathophysiological mechanisms of migraine, associated genetic factors that may influence susceptibility to the disease❞
Source: JHP | Mechanisms of migraine as a chronic evolutive condition
Migraine is just a headache with a more attention-grabbing name: True or False?
Clearly, False.
As we’ve already covered why above, we’ll just close today with a nod to an old joke amongst people with chronic illnesses in general:
“Are you just saying that because you want attention?”
“Yes… Medical attention!”
Want to learn more?
You can find a lot of resources at…
NIH | National Institute of Neurological Disorders & Stroke | Migraine
and…
The Migraine Trust ← helpfully, this one has a “Calm mode” to tone down the colorscheme of the website!
Particularly useful from the above site are its pages:
Take care!
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Can you drink your fruit and vegetables? How does juice compare to the whole food?
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Do you struggle to eat your fruits and vegetables? You are not alone. Less than 5% of Australians eat the recommended serves of fresh produce each day (with 44% eating enough fruit but only 6% eating the recommended vegetables).
Adults should aim to eat at least five serves of vegetables (or roughly 375 grams) and two serves of fruit (about 300 grams) each day. Fruits and vegetables help keep us healthy because they have lots of nutrients (vitamins, minerals and fibre) and health-promoting bioactive compounds (substances not technically essential but which have health benefits) without having many calories.
So, if you are having trouble eating the rainbow, you might be wondering – is it OK to drink your fruits and vegetables instead in a juice or smoothie? Like everything in nutrition, the answer is all about context.
It might help overcome barriers
Common reasons for not eating enough fruits and vegetables are preferences, habits, perishability, cost, availability, time and poor cooking skills. Drinking your fruits and vegetables in juices or smoothies can help overcome some of these barriers.
Juicing or blending can help disguise tastes you don’t like, like bitterness in vegetables. And it can blitz imperfections such as bruises or soft spots. Preparation doesn’t take much skill or time, particularly if you just have to pour store-bought juice from the bottle. Treating for food safety and shipping time does change the make up of juices slightly, but unsweetened juices still remain significant sources of nutrients and beneficial bioactives.
Juicing can extend shelf life and reduce the cost of nutrients. In fact, when researchers looked at the density of nutrients relative to the costs of common foods, fruit juice was the top performer.
So, drinking my fruits and veggies counts as a serve, right?
How juice is positioned in healthy eating recommendations is a bit confusing. The Australian Dietary Guidelines include 100% fruit juice with fruit but vegetable juice isn’t mentioned. This is likely because vegetable juices weren’t as common in 2013 when the guidelines were last revised.
The guidelines also warn against having juice too often or in too high amounts. This appears to be based on the logic that juice is similar, but not quite as good as, whole fruit. Juice has lower levels of fibre compared to fruits, with fibre important for gut health, heart health and promoting feelings of fullness. Juice and smoothies also release the sugar from the fruit’s other structures, making them “free”. The World Health Organization recommends we limit free sugars for good health.
But fruit and vegetables are more than just the sum of their parts. When we take a “reductionist” approach to nutrition, foods and drinks are judged based on assumptions made about limited features such as sugar content or specific vitamins.
But these features might not have the impact we logically assume because of the complexity of foods and people. When humans eat varied and complex diets, we don’t necessarily need to be concerned that some foods are lower in fibre than others. Juice can retain the nutrients and bioactive compounds of fruit and vegetables and even add more because parts of the fruit we don’t normally eat, like the skin, can be included.
So, it is healthy then?
A recent umbrella review of meta-analyses (a type of research that combines data from multiple studies of multiple outcomes into one paper looked at the relationship between 100% juice and a range of health outcomes.
Most of the evidence showed juice had a neutral impact on health (meaning no impact) or a positive one. Pure 100% juice was linked to improved heart health and inflammatory markers and wasn’t clearly linked to weight gain, multiple cancer types or metabolic markers (such as blood sugar levels).
Some health risks linked to drinking juice were reported: death from heart disease, prostate cancer and diabetes risk. But the risks were all reported in observational studies, where researchers look at data from groups of people collected over time. These are not controlled and do not record consumption in the moment. So other drinks people think of as 100% fruit juice (such as sugar-sweetened juices or cordials) might accidentally be counted as 100% fruit juice. These types of studies are not good at showing the direct causes of illness or death.
What about my teeth?
The common belief juice damages teeth might not stack up. Studies that show juice damages teeth often lump 100% juice in with sweetened drinks. Or they use model systems like fake mouths that don’t match how people drinks juice in real life. Some use extreme scenarios like sipping on large volumes of drink frequently over long periods of time.
Juice is acidic and does contain sugars, but it is possible proper oral hygiene, including rinsing, cleaning and using straws can mitigate these risks.
Again, reducing juice to its acid level misses the rest of the story, including the nutrients and bioactives contained in juice that are beneficial to oral health.
So, what should I do?
Comparing whole fruit (a food) to juice (a drink) can be problematic. They serve different culinary purposes, so aren’t really interchangeable.
The Australian Guide to Healthy Eating recommends water as the preferred beverage but this assumes you are getting all your essential nutrients from eating.
Where juice fits in your diet depends on what you are eating and what other drinks it is replacing. Juice might replace water in the context of a “perfect” diet. Or juice might replace alcohol or sugary soft drinks and make the relative benefits look very different.
On balance
Whether you want to eat your fruits and vegetables or drink them comes down to what works for you, how it fits into the context of your diet and your life.
Smoothies and juices aren’t a silver bullet, and there is no evidence they work as a “cleanse” or detox. But, with society’s low levels of fruit and vegetable eating, having the option to access nutrients and bioactives in a cheap, easy and tasty way shouldn’t be discouraged either.
Emma Beckett, Adjunct Senior Lecturer, Nutrition, Dietetics & Food Innovation – School of Health Sciences, UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Protein: How Much Do We Need, Really?
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Mythbusting Protein!
Yesterday, we asked you for your policy on protein consumption. The distribution of responses was as follows:
- A marginal majority (about 55%) voted for “Protein is very important, but we can eat too much of it”
- A large minority (about 35%) voted for “We need lots of protein; the more, the better!”
- A handful (about 4%) voted for “We should go as light on protein as possible”
- A handful (6%) voted for “If we don’t eat protein, our body will create it from other foods”
So, what does the science say?
If we don’t eat protein, our body will create it from other foods: True or False?
Contingently True on an absurd technicality, but for all practical purposes False.
Our body requires 20 amino acids (the building blocks of protein), 9 of which it can’t synthesize and absolutely must get from food. Normally, we get those amino acids from protein in our diet, and we can also supplement them by buying amino acid supplements.
Specifically, we require (per kg of bodyweight) a daily average of:
- Histidine: 10 mg
- Isoleucine: 20 mg
- Leucine: 39 mg
- Lysine: 30 mg
- Methionine: 10.4 mg
- Phenylalanine*: 25 mg
- Threonine: 15 mg
- Tryptophan: 4 mg
- Valine: 26 mg
*combined with the non-essential amino acid tyrosine
Source: Protein and Amino Acid Requirements In Human Nutrition: WHO Technical Report
However, to get the requisite amino acid amounts, without consuming actual protein, would require gargantuan amounts of supplementation (bearing in mind bioavailability will never be 100%, so you’ll always need to take more than it seems), using supplements that will have been made by breaking down proteins anyway.
So unless you live in a laboratory and have access to endless amounts of all of the required amino acids (you can’t miss even one; you will die), and are willing to do that for the sake of proving a point, then you do really need to eat protein.
Your body cannot, for example, simply break down sugar and use it to make the protein you need.
On another technical note… Do bear in mind that many foods that we don’t necessarily think of as being sources of protein, are sources of protein.
Grains and grain products, for example, all contain protein; we just don’t think of them as that because their macronutritional profile is heavily weighted towards carbohydrates.
For that matter, even celery contains protein. How much, you may ask? Almost none! But if something has DNA, it has protein. Which means all plants and animals (at least in their unrefined forms).
So again, to even try to live without protein would very much require living in a laboratory.
We can eat too much protein: True or False?
True. First on an easy technicality; anything in excess is toxic. Even water, or oxygen. But also, in practical terms, there is such a thing as too much protein. The bar is quite high, though:
❝Based on short-term nitrogen balance studies, the Recommended Dietary Allowance of protein for a healthy adult with minimal physical activity is currently 0.8 g protein per kg bodyweight per day❞
❝To meet the functional needs such as promoting skeletal-muscle protein accretion and physical strength, dietary intake of 1.0, 1.3, and 1.6 g protein per kg bodyweight per day is recommended for individuals with minimal, moderate, and intense physical activity, respectively❞
❝Long-term consumption of protein at 2 g per kg bodyweight per day is safe for healthy adults, and the tolerable upper limit is 3.5 g per kg bodyweight per day for well-adapted subjects❞
❝Chronic high protein intake (>2 g per kg bodyweight per day for adults) may result in digestive, renal, and vascular abnormalities and should be avoided❞
Source: Dietary protein intake and human health
To put this into perspective, if you weigh about 160lbs (about 72kg), this would mean eating more than 144g protein per day, which grabbing a calculator means about 560g of lean beef, or 20oz, or 1¼lb.
If you’re eating quarter-pounder burgers though, that’s not usually so lean, so you’d need to eat more than nine quarter-pounder burgers per day to get too much protein.
High protein intake damages the kidneys: True or False?
True if you have kidney damage already; False if you are healthy. See for example:
- Effects of dietary protein restriction on the progression of advanced renal disease in the modification of diet in renal disease study
- A high protein diet has no harmful effects: a one-year crossover study in healthy male athletes
High protein intake increases cancer risk: True or False?
True or False depending on the source of the protein, so functionally false:
- Eating protein from red meat sources has been associated with higher risk for many cancers
- Eating protein from other sources has been associated with lower risk for many cancers
Source: Red Meat Consumption and Mortality Results From 2 Prospective Cohort Studies
High protein intake increase risk of heart disease: True or False?
True or False depending on the source of the protein, so, functionally false:
- Eating protein from red meat sources has been associated with higher risk of heart disease
- Eating protein from other sources has been associated with lower risk of heart disease
Source: Major Dietary Protein Sources and Risk of Coronary Heart Disease in Women
In summary…
Getting a good amount of good quality protein is important to health.
One can get too much, but one would have to go to extremes to do so.
The source of protein matters:
- Red meat is associated with many health risks, but that’s not necessarily the protein’s fault.
- Getting plenty of protein from (ideally: unprocessed) sources such as poultry, fish, and/or plants, is critical to good health.
- Consuming “whole proteins” (that contain all 9 amino acids that we can’t synthesize) are best.
Learn more: Complete proteins vs. incomplete proteins (explanation and examples)
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