
Castor Oil: All-Purpose Life-Changer, Or Snake Oil?
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As “trending” health products go, castor oil is enjoying a lot of popularity presently, lauded as a life-changing miracle-worker, and social media is abuzz with advice to put it everywhere from your eyes to your vagina.
But:
- what things does science actually say it’s good for,
- what things lack evidence, and
- what things go into the category of “wow definitely do not do that”?
We don’t have the space to go into all of its proposed uses (there are simply far too many), but we’ll examine some common ones:
To heal/improve the skin barrier
Like most oils, it’s functional as a moisturizer. In particular, its high (90%!) ricinoleic fatty acid content does indeed make it good at that, and furthermore, has properties that can help reduce skin inflammation and promote wound healing:
Bioactive polymeric formulations for wound healing ← there isn’t a conveniently quotable summary we can just grab here, but you can see the data and results, from which we can conclude:
- formulations with ricinoleic acid (such as with castor oil) performed very well for topical anti-inflammatory purposes
- they avoided the unwanted side effects associated with some other contenders
- they consistently beat other preparations in the category of wound-healing
To support hair growth and scalp health
There is no evidence that it helps. We’d love to provide a citation for this, but it’s simply not there. There’s also no evidence that it doesn’t help. For whatever reason, despite its popularity, peer-reviewed science has simply not been done for this, or if it has, it wasn’t anywhere publicly accessible.
It’s possible that if a person is suffering hair loss specifically as a result of prostaglandin D2 levels, that ricinoleic acid will inhibit the PGD2, reversing the hair loss, but even this is hypothetical so far, as the science is currently only at the step before that:
However, due to some interesting chemistry, the combination of castor oil and warm water can result in acute (and irreversible) hair felting, in other words, the strands of hair suddenly glue together to become one mass which then has to be cut off:
“Castor Oil” – The Culprit of Acute Hair Felting
👆 this is a case study, which is generally considered a low standard of evidence (compared to high-quality Randomized Controlled Trials as the highest standard of evidence), but let’s just say, this writer (hi, it’s me) isn’t risking her butt-length hair on the off-chance, and doesn’t advise you to, either. There are other hair-oils out there; argan oil is great, coconut oil is totally fine too.
As a laxative
This time, there’s a lot of evidence, and it’s even approved for this purpose by the FDA, but it can be a bit too good, insofar as taking too much can result in diarrhea and uncomfortable cramping (the cramps are a feature not a bug; the mechanism of action is stimulatory, i.e. it gets the intestines squeezing, but again, it can result in doing that too much for comfort):
Castor Oil: FDA-Approved Indications
To soothe dry eyes
While putting oil in your eyes may seem dubious, this is another one where it actually works:
❝Castor oil is deemed safe and tolerable, with strong anti-microbial, anti-inflammatory, anti-nociceptive, analgesic, antioxidant, wound healing and vasoconstrictive properties.
These can supplement deficient physiological tear film lipids, enabling enhanced lipid spreading characteristics and reducing aqueous tear evaporation.
Studies reveal that castor oil applied topically to the ocular surface has a prolonged residence time, facilitating increased tear film lipid layer thickness, stability, improved ocular surface staining and symptoms.❞
Source: Therapeutic potential of castor oil in managing blepharitis, meibomian gland dysfunction and dry eye
Against candidiasis (thrush)
We couldn’t find science for (or against) castor oil’s use against vaginal candidiasis, but here’s a study that investigated its use against oral candidiasis:
…in which castor oil was the only preparation that didn’t work against the yeast.
Summary
We left a lot unsaid today (so many proposed uses, it feels like a shame to skip them), but in few words: it’s good for skin (including wound healing) and eyes; but we’d give it a miss for hair, candidiasis, and digestive disorders.
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon 😎
Take care!
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Pistachios vs Cashews – Which is Healthier?
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Our Verdict
When comparing pistachios to cashews, we picked the pistachios.
Why?
In terms of macros, both are great sources of protein and healthy fats, and considered head-to-head:
- pistachios have slightly more protein, but it’s close
- pistachios have slightly more (health) fat, but it’s close
- cashews have slightly more carbs, but it’s close
- pistachios have a lot more fiber (more than 3x more!)
All in all, both have a good macro balance, but pistachios win easily on account of the fiber, as well as the slight edge for protein and fats.
When it comes to vitamins, pistachios have more of vitamins A, B1, B2, B3, B6, B9, C, & E.
Cashews do have more vitamin B5, also called pantothenic acid, pantothenic literally meaning “from everywhere”. Guess what’s not a common deficiency to have!
So pistachios win easily on vitamins, too.
In the category of minerals, things are more balanced, though cashews have a slight edge. Pistachios have more notably more calcium and potassium, while cashews have notably more selenium, zinc, and magnesium.
Both of these nuts have anti-inflammatory, anti-diabetic, and anti-cancer benefits, often from different phytochemicals, but with similar levels of usefulness.
Taking everything into account, however, one nut comes out in the clear lead, mostly due to its much higher fiber content and better vitamin profile, and that’s the pistachios.
Want to learn more?
Check out:
Why You Should Diversify Your Nuts
Enjoy!
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Yoga Therapy for Arthritis – by Dr. Steffany Moonaz & Erin Byron
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Two quick notes to start with:
- One of the problems with arthritis and exercise is that arthritis can often impede exercise.
- Another of the problems with arthritis and exercise is that some kinds of exercise can exacerbate arthritis.
This book deals with both of those issues, by providing yoga specifically tailored to living with arthritis. Indeed, the first-listed author’s PhD in public health was the result of 8 years of study developing an evidence-based yoga program for people with arthritis, including osteoarthritis and rheumatoid arthritis.
The authors take the view that arthritis is a whole-person disease (i.e. it affects all parts of you), and so addressing it requires a whole-person approach, which is what this book delivers.
As such, this is not just a book of asana (yoga postures). It does provide that, of course (as well as breathing exercises), but also its 328 pages additionally cover a lot of conscious work from the inside out, including attention to the brain, energy levels, pain, and so forth, and that the practice of yoga should not merely directly improve the joints via gentle physical exercise, but also should help to heal the whole person, including reducing stress levels, reducing physical tension, and with those two things, reducing inflammation also—and also, due to both that and the asana side of practice, better-functioning organs, which is always a bonus.
The style is interesting, as it refers to both science (8 pages of hard-science bibliography) and yogic principles (enough esoterica to put off, say, James Randi or Penn & Teller). This reviewer is very comfortable with both, and so if you, dear reader, are comfortable with both too, then you will surely enjoy this book.
Bottom line: if you or a loved one has arthritis, you’ll wish you got this book sooner.
Click here to check out Yoga Therapy For Arthritis, and live better!
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AC: The Power of Appetite Correction – by Dr. Bert Herring
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“Appetite Correction” is an intriguing concept, and so it intrigued us sufficiently to read this book. So what’s it about?
It’s about modifying our response to hunger, and treating it as a messenger to whom we may say “thank you for your opinion” and then do as we already planned to do. And what is that?
Simply, this book is about intermittent fasting, specifically, 19:5 fasting, i.e., fast for 19 hours and eat during a 5hr window each day (the author proposes 5pm–10pm, but honestly, go with what works for you).
During the fasting period, drinking water, or consuming other non insulin-signalling things (e.g. black coffee, black tea, herbal tea, etc) is fine, but not so much as a bite of anything else (nor calorific drinks, e.g. with milk/cream or sugar in, and certainly not sodas, juices, etc).
During the eating period, the idea is to eat at will without restriction (even unhealthy things, if such is your desire) during those 5 hours, with the exception that one should start with something healthy. In other words, you can line up that take-out if you want, but eat a carrot first to break the fast. Or some nuts. Or whatever, but healthy.
The “appetite correction” part of it comes in with how, after a short adjustment period, you will get used to not suffering from hunger during the fasting period, and during the eating period, you will—paradoxically—be more able to practise moderation in your portions.
Most of the book is given over the dealing with psychological difficulties/objections, as well as some social objections, but he does also explain some of the science at hand too (i.e. how intermittent fasting works, on a physiological level). On which note…
The style is on the very light end of pop-science, and unusually, he doesn’t cite any sources for his claims at all. Now, no science that he claimed struck this reviewer as out of the ordinary, but it would have been nice to see a good few pages of bibliography at the back.
Bottom line: this is a super quick-and-easy read that makes a strong (albeit unsourced) case for intermittent fasting. It’s probably best for someone who would like the benefits and needs some persuading, but who is not very interested in delving into the science beyond being content to understand what is explained and put it into practice.
Click here to check out AC: The Power of Appetite Correction, and get yours where you want it!
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Women’s Strength Training Anatomy – by Frédéric Delavier
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Fitness guides for women tend to differ from fitness guides for men, in the wrong ways:
“Do some squats and jumping jacks, and here’s a exercise for your abs; you too can look like our model here”
In those other books we are left wonder: where’s the underlying information? Where are the explanations that aren’t condescending? Where, dare we ask, is the understanding that a woman might ever lift something heavier than a baby?
Delavier, in contrast, delivers. With 130 pages of detailed anatomical diagrams for all kinds of exercises to genuinely craft your body the way you want it for you. Bigger here, smaller there, functional strength, you decide.
And rest assured: no, you won’t end up looking like Arnold Schwarzenegger unless you not only eat like him, but also have his genes (and possibly his, uh, “supplement” regime).
What you will get though, is a deep understanding of how to tailor your exercise routine to actually deliver the personalized and specific results that you want.
Pick Up Today’s Book on Amazon!
Not looking for a feminine figure? You may like the same author’s book for men:
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Increase in online ADHD diagnoses for kids poses ethical questions
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In 2020, in the midst of a pandemic, clinical protocols were altered for Ontario health clinics, allowing them to perform more types of care virtually. This included ADHD assessments and ADHD prescriptions for children – services that previously had been restricted to in-person appointments. But while other restrictions on virtual care are back, clinics are still allowed to virtually assess children for ADHD.
This shift has allowed for more and quicker diagnoses – though not covered by provincial insurance (OHIP) – via a host of newly emerging private, for-profit clinics. However, it also has raised significant ethical questions.
It solves an equity issue in terms of rural access to timely assessments, but does it also create new equity issues as a privatized service?
Is it even feasible to diagnose a child for a condition like ADHD without meeting that child in person?
And as rates of ADHD diagnosis continue to rise, should health regulators re-examine the virtual care approach?
Ontario: More prescriptions, less regulation
There are numerous for-profit clinics offering virtual diagnoses and prescriptions for childhood ADHD in Ontario. These include KixCare, which does not offer the option of an in-person assessment. Another clinic, Springboard, makes virtual appointments available within days, charging around $2,600 for assessments, which take three to four hours. The clinic offers coaching and therapy at an additional cost, also not covered by OHIP. Families can choose to continue to visit the clinic virtually during a trial stage with medications, prescribed by a doctor in the clinic who then sends prescribing information back to the child’s primary care provider.
For-profit clinics like these are departing from Canada’s traditional single-payer health care model. By charging patients out-of-pocket fees for services, the clinics are able to generate more revenue because they are working outside of the billing standards for OHIP, standards that set limits on the maximum amount doctors can earn for providing specific services. Instead many services are provided by non-physician providers, who are not limited by OHIP in the same way.
Need for safeguards
ADHD prescriptions rose during the pandemic in Ontario, with women, people of higher income and those aged 20 to 24 receiving the most new diagnoses, according to research published in January 2024 by a team including researchers from the Centre for Addictions and Mental Health and Holland Bloorview Children’s Hospital. There may be numerous reasons for this increase but could the move to virtual care have been a factor?
Ontario psychiatrist Javeed Sukhera, who treats both children and adults in Canada and the U.S., says virtual assessments can work for youth with ADHD, who may receive treatment quicker if they live in remote areas. However, he is concerned that as health care becomes more privatized, it will lead to exploitation and over-diagnosis of certain conditions.
“There have been a lot of profiteers who have tried to capitalize on people’s needs and I think this is very dangerous,” he said. “In some settings, profiteering companies have set up systems to offer ADHD assessments that are almost always substandard. This is different from not-for-profit setups that adhere to quality standards and regulatory mechanisms.”
Sukhera’s concerns recall the case of Cerebral Inc., a New York state-based virtual care company founded in 2020 that marketed on social media platforms including Instagram and TikTok. Cerebral offered online prescriptions for ADHD drugs among other services and boasted more than 200,000 patients. But as Dani Blum reported in the New York Times, Cerebral was accused in 2023 of pressuring doctors on staff to prescribe stimulants and faced an investigation by state prosecutors into whether it violated the U.S. Controlled Substances Act.
“At the start of the pandemic, regulators relaxed rules around medical prescription of controlled substances,” wrote Blum. “Those changes opened the door for companies to prescribe and market drugs without the protocols that can accompany an in-person visit.”
Access increased – but is it equitable?
Virtual care has been a necessity in rural areas in Ontario since well before the pandemic, although ADHD assessments for children were restricted to in-person appointments prior to 2020.
But ADHD assessment clinics that charge families out-of-pocket for services are only accessible to people with higher incomes. Rural families, many of whom are low income, are unable to afford thousands for private assessments, let alone the other services upsold by providers. If the private clinic/virtual care trend continues to grow unchecked, it may also attract doctors away from the public model of care since they can bill more for services. This could further aggravate the gap in care that lower income people already experience.
This could further aggravate the gap in care that lower income people already experience.
Sukhera says some risks could be addressed by instituting OHIP coverage for services at private clinics (similar to private surgical facilities that offer mixed private/public coverage), but also with safeguards to ensure that profits are reinvested back into the health-care system.
“This would be especially useful for folks who do not have the income, the means to pay out of pocket,” he said.
Concerns of misdiagnosis and over-prescription
Some for-profit companies also benefit financially from diagnosing and issuing prescriptions, as has been suggested in the Cerebral case. If it is cheaper for a clinic to do shorter, virtual appointments and they are also motivated to diagnose and prescribe more, then controls need to be put in place to prevent misdiagnosis.
The problem of misdiagnosis may also be related to the nature of ADHD assessments themselves. University of Strathclyde professor Matthew Smith, author of Hyperactive: The Controversial History of ADHD, notes that since the publication of Diagnostic and Statistical Manual of Mental Disorders in 1980, assessment has typically involved a few hours of parents and patients providing their subjective perspectives on how they experience time, tasks and the world around them.
“It’s often a box-ticking exercise, rather than really learning about the context in which these behaviours exist,” Smith said. “The tendency has been to use a list of yes/no questions which – if enough are answered in the affirmative – lead to a diagnosis. When this is done online or via Zoom, there is even less opportunity to understand the context surrounding behaviour.”
Smith cited a 2023 BBC investigation in which reporter Rory Carson booked an in-person ADHD assessment at a clinic and was found not to have the condition, then had a private online assessment – from a provider on her couch in a tracksuit – and was diagnosed with ADHD after just 45 minutes, for a fee of £685.
What do patients want?
If Canadian regulators can effectively tackle the issue of privatization and the risk of misdiagnosis, there is still another hurdle: not every youth is willing to take part in virtual care.
Jennifer Reesman, a therapist and Training Director for Neuropsychology at the Chesapeake Center for ADHD, Learning & Behavioural Health in Maryland, echoed Sukhera’s concerns about substandard care, cautioning that virtual care is not suitable for some of her young clients who had poor experiences with online education and resist online health care. It can be an emotional issue for pediatric patients who are managing their feelings about the pandemic experience.
“We need to respect what their needs are, not just the needs of the provider,” says Reesman.
In 2020, Ontario opted for virtual care based on the capacity of our health system in a pandemic. Today, with a shortage of doctors, we are still in a crisis of capacity. The success of virtual care may rest on how engaged regulators are with equity issues, such as waitlists and access to care for rural dwellers, and how they resolve ethical problems around standards of care.
Children and youth are a distinct category, which is why we had restrictions on virtual ADHD diagnosis prior to the pandemic. A question remains, then: If we could snap our fingers and have the capacity to provide in-person ADHD care for all children, would we? If the answer to that question is yes, then how can we begin to build our capacity?
This article is republished from healthydebate under a Creative Commons license. Read the original article.
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How the stress of playing chess can be fatal
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The death of a chess player in the middle of a match at the world’s most prestigious competition may have shocked those who view the game as a relaxing pastime. Kurt Meier, 67, collapsed during his final match in the tournament and died in hospital later that day. But chess, like any other game or sport, can lead to an immense amount of stress, which can be bad for a competitor’s physical health too.
We tend to associate playing sport or games with good health and well-being. And there are a countless number of studies showing playing games has an association with feeling happier. While this argument is true for recreational players, the story can be different for the elite, where success and failure are won and lost by the finest margins and where winning can mean funding and a future, and losing can mean poverty and unemployment. If this is the case, can being successful at a sport or game actually be bad for you?
Competitive anxiety
Elite competition can be stressful because the outcome is so important to the competitors. We can measure stress using a whole range of physiological indicators such as heart rate and temperature, and responses such as changes in the intensity of our emotions.
Emotions provide a warning of threat. So if you feel that achieving your goal is going to be difficult, then expect to feel intense emotions. The leading candidate that signals we are experiencing stress is anxiety, characterised by thoughts of worry, fears of dread about performance, along with accompanying physiological responses such as increased heart rate and sweaty palms. If these symptoms are experienced regularly or chronically, then this is clearly detrimental to health.
This stress response is probably not restricted to elite athletes. Intense emotions are linked to trying to achieve important goals and while it isn’t the only situation where it occurs, it is just very noticeable in sport.
The causes of stress
It makes more sense to focus on what the causes of stress are rather than where we experience it. The principle is that the more important the goal is to achieve, then the greater the propensity for the situation to intensify emotions.
Emotions intensify also by the degree of uncertainty and competing, at whatever level of a sport, is uncertain when the opposition is trying its hardest to win the contest and also has a motivation to succeed. The key point is that almost all athletes at any level can suffer bouts of stress, partly due to high levels of motivation.
A stress response is also linked to how performance is judged and reported. Potentially stressful tasks tend to be ones where performance is public and feedback is immediate. In chess – as with most sporting contests – we see who the winner is and can start celebrating success or commiserating failure as soon as the game is over.
There are many tasks which have similar features. Giving a speech in public, taking an academic examination, or taking your driving test are all examples of tasks that can illicit stress. Stress is not restricted to formal tasks but can also include social tasks. Asking a potential partner for a date, hand in marriage, and meeting the in-laws for the first time can be equally stressful.
Winning a contest or going on a date relate to higher-order goals about how we see ourselves. If we define ourselves as “being a good player” or “being attractive or likeable” then contrasting information is likely to associate with unpleasant emotions. You will feel devastated if you are turned down when asking someone out on a date, for instance, and if this was repeated, it could lead to reduced self-esteem and depression.
The key message here is to recognise what your goals are and think about how important they are. If you want to achieve them with a passion and if the act of achieving them leads to intense and sometimes unwanted emotions, then it’s worth thinking about doing some work to manage these emotions.
Andrew Lane, Professor in Sport and Learning, University of Wolverhampton
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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