Robert F. Kennedy Jr says vitamin A protects you from deadly measles. Here’s what the study he cites actually says
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Robert F. Kennedy Jr, who oversees the health of more than 340 million Americans, says vitamin A can prevent the worst effects of measles rather than urging more people to get vaccinated.
In an opinion piece for Fox News, the US health secretary said he was “deeply concerned” about the current measles outbreak in Texas. However, he said the decision to vaccinate was a “personal one” and something for parents to discuss with their health-care provider.
Kennedy mentioned updated advice from the Centers for Disease Control (CDC) to treat measles with vitamin A. He also cited a study he said shows vitamin A can reduce the risk of dying from measles.
Here’s what the vitamin A study actually says and why public health officials are so concerned about Kennedy’s latest statement.
Why is a measles outbreak so worrying?
Measles is a highly contagious disease caused by a virus. It spreads easily including when an infected person breathes, coughs or sneezes.
Measles initially infects the respiratory tract and then the virus spreads throughout the body. Symptoms include a high fever, cough, red eyes, runny nose and a rash all over the body.
Measles can also be severe, can cause complications including blindness and swelling of the brain, and can be fatal. Measles can affect anyone but is most common in children.
The Texan health department has confirmed 150-plus cases of measles and one death of an unvaccinated child during the current outbreak. While this is by far the largest measles outbreak in the US in 2025, the CDC has reported smaller outbreaks in several other states so far this year.
Why vitamin A?
Vitamin A is essential for our overall health. It has many roles in the body, from supporting our growth and reproduction, to making sure we have healthy vision, skin and immune function.
Foods rich in vitamin A or related molecules include orange, yellow and red coloured fruits and vegetables, green leafy vegetables, as well as dairy, egg, fish and meat. You can take it as a supplement.
Vitamin A can also be used therapeutically. In other words, doctors may prescribe vitamin A to treat a deficiency. Vitamin A deficiency has long been associated with more severe cases of infectious disease, including measles. Vitamin A boosts immune cells and strengthens the respiratory tract lining, which is the body’s first defence against infections.
Because of this, the CDC has recently said vitamin A can also be prescribed as part of treatment for children with severe measles – such as those in hospital – under doctor supervision.
One key message from the CDC’s advice is that people are already sick enough with measles to be in hospital. They’re not taking vitamin A to prevent catching measles in the first place.
The other key message is vitamin A is taken under medical supervision, under specific circumstances, where patients can be closely monitored to prevent toxicity from high doses.
Vitamin A toxicity can cause birth defects and increase the risk of fractures in elderly people. Vitamin A and beta-carotene (which the body turns into vitamin A) from supplements may also increase your risk of cancer, especially if you smoke.
How about the study Kennedy cites?
Kennedy cites and links to a 2010 study, a type known as a systematic review and meta-analysis. Researchers reviewed and analysed existing studies, which included ones that looked at the effectiveness of vitamin A in preventing measles deaths.
They found three studies that looked at vitamin A treatment by specific dose. There were different doses depending on the age of the children, measured in IU (international units). Having two doses of vitamin A (200,000IU for children over one year of age or 100,000IU for infants below one year) reduced mortality by 62% compared to children who did not have vitamin A.
The 2010 study did not show vitamin A reduced your risk of getting measles from another infected person. To my knowledge no study has shown this.
To be fair, Kennedy did not say that vitamin A stops you from catching measles from another infected person. Instead, he used the following vague statement:
Studies have found that vitamin A can dramatically reduce measles mortality.
It’s easy to see how a reader could misinterpret this as “take vitamin A if you want to avoid dying from measles”.
We know what works – vaccines
The World Health Organization recommends all children receive two doses of measles vaccine.
The CDC states two doses of the measles vaccine (measles-mumps-rubella or MMR vaccine) is 97% effective against getting measles. This means out of every 100 people who are vaccinated only three will get it, and this will be a milder form.
But these facts were missing from Kennedy’s statement. Should we be surprised? Kennedy is well known for his vaccine sceptism and for undermining vaccination efforts, including for the measles vaccine.
As Sue Kressly, president of the American Academy of Pediatrics, told the Washington Post:
relying on vitamin A instead of the vaccine is not only dangerous and ineffective […] it puts children at serious risk.
Evangeline Mantzioris, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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More Things Dopamine Does For Us
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In this week’s news roundup, we have two dopamine items and one other for variety:
The real “dopamine switch”
Dopamine is well-known as “the reward chemical”, and indeed it is that, but it also plays a central role in many neurological processes, including:
- Linear task processing
- Motivation
- Learning and memory
- Motor functions
- Language faculties
Recent research has now shown its importance in cognitive flexibility, i.e. the ability to adapt to circumstances, and switch approaches appropriately to such, and generally not get stuck in a cognitive rut:
Read in full: Scientists confirm neurobiochemical link between dopamine and cognitive flexibility
Related: The Dopamine Myth
You may like the sound of this
It’s been known for a while that dopamine is involved in learning and memory (as mentioned above), but this has been established largely by associative studies, e.g. “people with lower dopamine levels learn less easily”. But scientists have now mapped out more of how it actually does that.
One more reason to ensure we have and maintain healthy dopamine levels!
Read in full: Songbirds highlight dopamine’s role in learning
Related: 10 Ways To Naturally Boost Dopamine
Resist Or Run!
When it comes to protecting against bone loss, resistance exercise remains key, but impact-laden activities such as running (but not lower-level everyday activity) can help too. There have been studies on the extent to which walking (a load-bearing activity) may be protective against bone loss, and the results of those studies have mostly been inconclusive.
This study looked into the incidence (or not, as the case may be) of bone-loading impacts in everyday movements, using accelerometers, and measured bone mineral density before and after testing periods. Those that had higher-intensity bone-loading movements (so, resistance training or running, for example) retained the best measures of bone density through menopause into postmenopause:
Read in full: Everyday physical activity does not slow bone loss during menopause, finds study
Related: The Bare-Bones Truth About Osteoporosis
Take care!
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The Surprising Link Between Type 2 Diabetes & Alzheimer’s
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The Surprising Link Between Type 2 Diabetes & Alzheimer’s
This is Dr. Rhonda Patrick. She’s a biomedical scientist with expertise in the areas of aging, cancer, and nutrition. In the past five years she has expanded her research of aging to focus more on Alzheimer’s and Parkinson’s, as she has a genetic predisposition to both.
What does that genetic predisposition look like? People who (like her) have the APOE-ε4 allele have a twofold increased risk of Alzheimer’s disease—and if you have two copies (i.e., one from each of two parents), the risk can be up to tenfold. Globally, 13.7% of people have at least one copy of this allele.
So while getting Alzheimer’s or not is not, per se, hereditary… The predisposition to it can be passed on.
What’s on her mind?
Dr. Patrick has noted that, while we don’t know for sure the causes of Alzheimer’s disease, and can make educated guesses only from correlations, the majority of current science seems to be focusing on just one: amyloid plaques in the brain.
This is a worthy area of research, but ignores the fact that there are many potential Alzheimer’s disease mechanisms to explore, including (to count only mainstream scientific ideas):
- The amyloid hypothesis
- The tau hypothesis
- The inflammatory hypothesis
- The cholinergic hypothesis
- The cholesterol hypothesis
- The Reelin hypothesis
- The large gene instability hypothesis
…as well as other strongly correlated factors such as glucose hypometabolism, insulin signalling, and oxidative stress.
If you lost your keys and were looking for them, and knew at least half a dozen places they might be, how often would you check the same place without paying any attention to the others?
To this end, she notes about those latter-mentioned correlated factors:
❝50–80% of people with Alzheimer’s disease have type 2 diabetes; there is definitely something going on❞
There’s another “smoking gun” for this too, because dysfunction in the blood vessels and capillaries that line the blood-brain barrier seem to be a very early event that is common between all types of dementia (including Alzheimer’s) and between type 2 diabetes and APOE-ε4.
Research is ongoing, and Dr. Patrick is at the forefront of that. However, there’s a practical take-away here meanwhile…
What can we do about it?
Dr. Patrick hypothesizes that if we can reduce the risk of type 2 diabetes, we may reduce the risk of Alzheimer’s with it.
Obviously, avoiding diabetes if possible is a good thing to do anyway, but if we’re aware of an added risk factor for Alzheimer’s, it becomes yet more important.
Of course, all the usual advices apply here, including a Mediterranean diet and regular moderate exercise.
Three other things Dr. Patrick specifically recommends (to reduce both type 2 diabetes risk and to reduce Alzheimer’s risk) include:
(links are to her blog, with lots of relevant science for each)
You can also hear more from Dr. Patrick personally, as a guest on Dr. Peter Attia’s podcast recently. She discusses these topics in much greater detail than we have room for in our newsletter:
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I’m a medical forensic examiner. Here’s what people can expect from a health response after a sexual assault
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An estimated one in five women and one in 16 men in Australia have experienced sexual violence.
After such a traumatic experience, it’s understandable many are unsure if they want to report it to the police. In fact, less than 10% of Australian women who experience sexual assault ever make a police report.
In Australia there is no time limit on reporting sexual assault to police. However, there are tight time frames for collecting forensic evidence, which can sometimes be an important part of the police investigation, whether it’s commenced at the time or later.
This means the decision of whether or not to undergo a medical forensic examination needs to be made quite quickly after an assault.
I work as a medical forensic examiner. Here’s what you can expect if you present for a medical forensic examination after a sexual assault.
fizkes/Shutterstock A team of specialists
There are about 100 sexual assault services throughout Australia providing 24-hour care. As with other areas of health care, there are extra challenges in regional and rural areas, where there are often further distances to travel and staff shortages.
Sexual assault services in Australia are free regardless of Medicare status. To find your nearest service you can call 1800 RESPECT (1800 737 732) or Full Stop Australia (1800 385 578) who can also provide immediate telephone counselling support.
It’s important to call the local sexual assault service before turning up. They can provide the victim-survivor with information and advice to prevent delays and make the process as helpful as possible.
The consultation usually occurs in a hospital emergency department which has a designated forensic suite, or in a specialised forensic service.
The victim-survivor is seen by a doctor or nurse trained in medical and forensic care. There’s a sexual assault counsellor, crisis worker or social worker present to support the patient and offer counselling advice. This is called an “integrated response” with medical and psychosocial staff working together.
In most cases the victim-survivor can have their own support person present too.
Depending on what the victim-survivor wants, the doctor or nurse will take a history of the assault to guide any medical care which may be needed (such as emergency contraception) and to guide the examination.
Sexual assault services are always very aware of giving victim-survivors a choice about having a medical forensic examination. If a person presents to a sexual assault service, they can receive counselling and medical care without undergoing a forensic examination if they do not wish to. https://www.youtube.com/embed/CGlbTgia0Ek?wmode=transparent&start=0 Sexual assault services are inclusive of all genders.
Collecting forensic samples
Samples collected during a medical forensic examination can sometimes identify the perpetrator’s DNA or intoxicating substances (alcohol or drugs that might be relevant to the investigation). The window of opportunity to collect these samples can be as short as 12 hours, or up to 5–7 days, depending on the nature of the sexual assault.
In most of Australia, an adult who has experienced a recent sexual assault can be offered a medical forensic examination without making a report to police.
Depending on the state or territory, the forensic samples can usually be stored for 3 to 12 months (up to 100 years in Tasmania). This allows the victim-survivor time to decide if they want to release them to police for processing.
The doctor or nurse will collect the samples using a sexual assault investigation kit, or a “rape kit”.
Collecting these samples might involve taking swabs to try to detect DNA from external and internal genital areas and anywhere there may have been DNA transfer. This can be from skin cells, where the perpetrator touched the victim-survivor, or from bodily fluids including semen or saliva.
The doctor or nurse carrying out the examination do their best to minimise re-traumatisation, by providing the victim-survivor information, choices and control at every step of the process.
The victim-survivor can usually have a support person with them. Monkey Business Images/Shutterstock How about STIs and pregnancy?
During the consultation, the doctor or nurse will address any concerns about sexually transmitted infections (STIs) and pregnancy, if applicable.
In most cases the risk of STIs is small. But follow-up testing at 1–2 weeks for infections such as chlamydia and gonorrhoea, and at 6–12 weeks for infections such as syphilis and HIV, is usually recommended.
Emergency contraception (sometimes called the “morning after pill”) can be provided to prevent pregnancy. It can be taken up to five days after sexual assault (but the sooner the better) with follow-up pregnancy testing recommended at 2–3 weeks.
Things have improved over time
When I was a junior doctor in the late 90s, taking forensic swabs was usually the responsibility of the busy obstetrics and gynaecology trainee in the emergency department, who was often managing multiple patients and had little training in forensics. There was also usually no supportive counsellor.
Anecdotally, both the doctor and the patient were traumatised by this experience. Research shows that when specialised, integrated services are not provided, victim-survivors’ feelings of powerlessness are magnified.
But the way we carry out medical forensic examinations after sexual assault in Australia has improved over the years.
With patient-centred practices, and designated forensic and counselling staff, the experience for the patient is thought to be empowering rather than re-traumatising.
Our research
In new research published in the Australian Journal of General Practice, my colleagues and I explored the experience of the medical forensic examination from the victim-survivor’s perspective.
We surveyed 291 patients presenting to a sexual assault service in New South Wales (where I work) over four years.
Some 75% of patients reported the examination was reassuring and another 20% reported it was OK. Only 2% reported that it was traumatising. The majority (98%) said they would recommend a friend present to a sexual assault service if they were in a similar situation.
While patients spoke positively about the care they received, many commented that the sexual assault service was not visible enough. They didn’t know how to find it or even that it existed.
We know many victim-survivors don’t present to a sexual assault service or undergo a medical forensic examination after a sexual assault. So we need to do more to increase the visibility of these services.
The National Sexual Assault, Family and Domestic Violence Counselling Line – 1800 RESPECT (1800 737 732) – is available 24 hours a day, seven days a week for any Australian who has experienced, or is at risk of, family and domestic violence and/or sexual assault.
Mary Louise Stewart, Senior Career Medical Officer, Northern Sydney Local Health District; PhD Candidate, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Lies That Depression Tells Us
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In this short (6:42) video, psychiatrist Dr. Tracey Marks talks about 8 commonly-believed lies that depression often tells us. They are:
- “I don’t measure up”
- “No one cares about me”
- “I’m better off alone”
- “No one understands”
- “It’s all my fault”
- “I have no reason to be depressed”
- “Nothing matters”
- “I’ll never get better”
Some of these can be reinforced by people around us; it’s easy to believe that “no one understands” if for example the few people we interact with the most don’t understand, or that “I have no reason to be depressed” if people try to cheer you up by pointing out your many good fortunes.
The reality, of course, is that depression is a large, complex, and many-headed beast, with firm roots in neurobiology.
There are things we can do that may ameliorate it… But they also may not, and sometimes life is just going to suck for a while. That doesn’t mean we should give up (that, too, is depression lying to us, per “I’ll never get better”), but it does mean that we should not be so hard on ourselves for not having “walked it off” the way one might “just walk off” a broken leg.
Oh, you can’t “just walk off” a broken leg? Well then, perhaps it’s not surprising if we don’t “just think off” a broken brain, either. The brain can rebuild itself, but that’s a slow process, so buckle in:
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Want to know more?
You might like these previous articles of ours about depression (managing it, and overcoming it):
- The Mental Health First-Aid That You’ll Hopefully Never Need
- Behavioral Activation Against Depression & Anxiety
- The Easiest Way To Take Up Journaling
- Antidepressants: Personalization Is Key!
Take care!
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Top 8 Habits Of The Top 1% Healthiest Over-50s
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Will Harlow, over-50s specialist physio, compiled some stats from over a thousand over-50s clients:
Checklist
The findings:
- Consistency: the healthiest individuals practised some kind(s) of health habit daily. Consistency was emphasized as more important than perfection.
- Resistance training: 75% of the sample engaged in resistance training for better mobility, strength, and mental health. Not all used gyms; some used household objects like bags of books or resistance bands.
- Walking: everyone walked at least 6,000 steps per day, often briskly. Walking speed, not just step count, made a significant difference
- Purpose: most participants (bearing in mind that 80% of the total sample were retired) engaged in purposeful activities like volunteering, joining groups, or writing. Having a sense of purpose correlated with longer and healthier lives.
- Flexible dieting: participants paid attention to their eating without strictly following specific diets. Portion size discipline and consistency (eating well 90% of the time) were key.
- Mobility: they worked on joint stiffness with regular mobility and stretching routines. And, importantly, they do not accept stiffness as inevitable.
- Social engagement: they maintained at-least-weekly social contact (e.g. clubs, family meetups, outings). Social isolation, in contrast, was linked to severe health risks like dementia and early death.
- Positivity: participants maintained a positive attitude despite hardships, focussing on the things they could control. Broader scientific consensus supports the premise that a positive outlook improves health and longevity.
10almonds note: we’re curious as to how causality was established in some of these, since (for example) it could easily be that someone who is in better health will more readily walk more quickly, meaning that a higher walking speed was not necessarily such a causative factor in good health, but rather a result thereof. Of course, there may also be a degree of two-way causality, but still, we like good science and there seem to be some leaps of logic here that have otherwise gone unacknowledged.
This does not take away from the fact that those eight things are most certainly good things to be doing for one’s health, all the same.
For more on each of these, enjoy:
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Want to learn more?
You might also like:
Take care!
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Cherries vs Grapes – Which is Healthier?
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Our Verdict
When comparing cherries to grapes, we picked the cherries.
Why?
First, let’s mention: we are looking at sour cherries and Californian grapes. Even those will of course vary in quality, but the nutritional values here are quite reliable averages.
In terms of macros you might have guessed this one: cherries have nearly 2x the fiber and grapes have about 50% more carbs. So, while neither fruit is bad and they are both low glycemic index foods, cherry is the winner in this category.
When it comes to vitamins, cherries have more of vitamins A, B3, B5, B9, C, and choline, while grapes have more of vitamins B1, B2, B6, E, and K. That’s a 6:5 win for cherries, and the respective margins of difference bear that out too.
In the category of minerals, cherries have more calcium, copper, iron, magnesium, phosphorus, and zinc, while grapes have more manganese and potassium. An easy 6:2 win for cherries.
You might be wondering about polyphenols: both are very abundant in very many polyphenols; so much and so many, in fact, that we couldn’t possibly try to adjudicate between them without doing some complex statistical modeling (especially given how much this can vary from one sample to another, much more so than the micro-and macronutrient values discussed above), so we’ll call it a tie on these.
Adding up the section makes for a clear win for cherries, but of course, enjoy either or both!
Want to learn more?
You might like to read:
Cherries’ Very Healthy Wealth Of Benefits!
Resveratrol & Healthy AgingTake care!
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