Intermittent Fasting, Intermittently?
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small 😎
❝Have you come across any research on alternate-day intermittent fasting—specifically switching between one day of 16:8 fasting and the next day of regular eating patterns? I’m curious if there are any benefits or drawbacks to this alternating approach, or if the benefits mainly come from consistent intermittent fasting?❞
Short and unhelpful answer: no
Longer and hopefully more helpful answer:
As you probably know, usually people going for approaches based on the above terms either
- practise 16:8 fasting (fast for 16 hours each day, eat during an 8-hour window) or
- practise alternate-day fasting (fast for 24 hours, eat whenever for 24 hours, repeat)
…which latter scored the best results in this large meta-analysis of studies:
There is also the (popular) less extreme version of alternate-day fasting, sometimes called “eat stop eat”, which is not a very helpful description because that describes almost any kind of eating/fasting, but it usually refers to “once per week, take a day off from eating”.
You can read more about each of these (and some other variants), here:
Intermittent Fasting: What’s The Truth?
What you are describing (doing 16:8 fasting on alternate days, eating whenever on the other days) is essentially: intermittent fasting, just with one 16-hour fast per 48 hours instead of per the usual 24 hours.
See also: International consensus on fasting terminology ← the section on the terms “STF & PF” covers why this gets nudged back under the regular IF umbrella
Good news: this means there is a lot of literature into the acute (i.e., occurring the same day, not long-term)* benefits of 16:8 IF, and that means that you will be getting those benefits, every second day.
You remember that meta-analysis we posted above? While it isn’t mentioned in the conclusion (which only praised complete alternate-day fasting producing the best outcomes overall), sifting through the results data discovers that time-restricted eating (which is what you are doing, by these classifications) was the only fasting method to significantly reduce fasting blood glucose levels.
(However, no significant differences were observed between any IF form and the reference (continuous energy restriction, CER, i.e. calorie-controlled) diets in fasting insulin and HbA1c levels)
*This is still good news in the long-term though, because getting those benefits every second day is better than getting those benefits on no days, and this will have a long-term impact on your healthy longevity, just like how it is better to exercise every second day than it is to exercise no days, or better to abstain from alcohol every second day than it is to abstain on no days, etc.
In short, by doing IF every second day, you are still giving your organs a break sometimes, and that’s good.
All the same, if it would be convenient and practical for you, we would encourage you to consider either the complete alternate-day fasting (which, according to a lot of data, gives the best results overall),or time-restricted eating (TRE) every day (which, according to a lot of data, gives the best fasting blood sugar levels).
You could also improve the TRE days by shifting to 20:4 (i.e., 20 hours fasting and 4 hours eating), this giving your organs a longer break on those days.
Want to learn more?
For a much more comprehensive discussion of the strengths and weaknesses of different approaches to intermitted fasting, check out:
Enjoy!
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An Unexpected Extra Threat Of Alcohol
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If You Could Use Some Exotic Booze…
…then for health reasons, we’re going to have to say “nay”.
We’ve written about alcohol before, and needless to say, it’s not good:
(the answer is “no, we cannot”)
In fact, the WHO (which unlike government regulatory bodies setting “safe” limits on drinking, makes no profit from taxes on alcohol sales) has declared that “the only safe amount of alcohol is zero”:
WHO: No level of alcohol consumption is safe for our health
Up there, where the air is rarefied…
If you’re flying somewhere this summer (Sinatra-style flying honeymoon or otherwise), you might want to skip the alcohol even if you normally do imbibe, because:
❝…even in young and healthy individuals, the combination of alcohol intake with sleeping under hypobaric conditions poses a considerable strain on the cardiac system and might lead to exacerbation of symptoms in patients with cardiac or pulmonary diseases.
These effects might be even greater in older people; cardiovascular symptoms have a prevalence of 7% of inflight medical emergencies, with cardiac arrest causing 58% of aircraft diversions.❞
Source: Alcohol plus cabin pressure at higher altitude may threaten sleeping plane passengers’ heart health
The experiment divided subjects into a control group and a study group; the study group were placed in simulated cabin pressure as though at altitude, which found, when giving some of them two small(we’re talking the kind given on flights) alcoholic drinks:
❝The combination of alcohol and simulated cabin pressure at cruising altitude prompted a fall in SpO2 to an average of just over 85% and a compensatory increase in heart rate to an average of nearly 88 beats/minute during sleep.❞
In contrast, that was 77 beats/minute for those who had alcohol but weren’t at altitude pressure, or 64 beats/minute for those who neither drank nor were at altitude pressure.
Lots more metrics were recorded and the study is interesting to read; if you’ve ever slept on a plane and thought “that sleep was not restful at all”, then know: it wasn’t just the seat’s fault, nor the engine, nor the recycled nature of the air—it was the reduced pressure causing hypoxia (defined as having oxygen levels lower than the healthy clinical norm of 90%) and almost halving your sleep’s effectiveness for a less than 10% drop in available oxygen in the blood (the sleepers not at altitude pressure averaged 96% SpO2, compared to the 85% at altitude).
We say “almost halving” because the deep sleep phase of sleep was reduced from 84 minutes (control) to 67.5 minutes at altitude without alcohol, or 46.5 minutes at altitude with alcohol.
Again, this was a pressure cabin in a lab—so this wasn’t about the other conditions of an airplane (seats, engine hundreds of other people, etc).
Which means: in an actual airplane it’s probably even worse.
Oh, and the study participants? All healthy individuals aged 18–40, so again probably worse for those older (or younger) than that range, or with existing health conditions!
Want to know more?
You can read the study in full here:
Want to drop the drink at any altitude? Check out:
Want to get that vacation feel without alcohol? You’re going to love:
Mocktails – by Moira Clark (book)
Enjoy!
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The Sugar Alcohol That Reduces BMI!
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Inositol Does-It-Ol’!
First things first, a quick clarification up-front:
Myo-inositol or D-chiro-inositol?
We’re going to be talking about inositol today, which comes in numerous forms, but most importantly:
- Myo-inositol (myo-Ins)
- D-chiro-inositol (D-chiro-Ins)
These are both inositol, (a sugar alcohol!) and for our purposes today, the most relevant form is myo-inositol.
The studies we’ll look at today are either:
- just about myo-inositol, or
- about myo-inositol in the presence of d-chiro-inositol at a 40:1 ratio.
You have both in your body naturally; wherever supplementation is mentioned, it means supplementing with either:
- extra myo-inositol (because that’s the one the body more often needs more of), or
- both, at the 40:1 ratio that we mentioned above (because that’s one way to help balance an imbalanced ratio)
With that in mind…
Inositol against diabetes?
Inositol is known to:
- decrease insulin resistance
- increase insulin sensitivity
- have an important role in cell signaling
- have an important role in metabolism
The first two things there both mean that inositol is good against diabetes. It’s not “take this and you’re cured”, but:
- if you’re pre-diabetic it may help you avoid type 2 diabetes
- if you are diabetic (either type) it can help in the management of your diabetes.
It does this by allowing your body to make better use of insulin (regardless of whether that insulin is from your pancreas or from the pharmacy).
How does it do that? Research is still underway and there’s a lot we don’t know yet, but here’s one way, for example:
❝Evidence showed that inositol phosphates might enhance the browning of white adipocytes and directly improve insulin sensitivity through adipocytes❞
Read: Role of Inositols and Inositol Phosphates in Energy Metabolism
We mentioned its role in metabolism in a bullet-point above, and we didn’t just mean insulin sensitivity! There’s also…
Inositol for thyroid function?
The thyroid is one of the largest endocrine glands in the body, and it controls how quickly the body burns energy, makes proteins, and how sensitive the body should be to other hormones. So, it working correctly or not can have a big impact on everything from your mood to your weight to your energy levels.
How does inositol affect thyroid function?
- Inositol has an important role in thyroid function and dealing with autoimmune diseases.
- Inositol is essential to produce H2O2 (yes, really) required for the synthesis of thyroid hormones.
- Depletion of inositol may lead to the development of some thyroid diseases, such as hypothyroidism.
- Inositol supplementation seems to help in the management of thyroid diseases.
Read: The Role of Inositol in Thyroid Physiology and in Subclinical Hypothyroidism Management
Inositol for PCOS?
A systematic review published in the Journal of Gynecological Endocrinology noted:
- Inositol can restore spontaneous ovarian activity (and consequently fertility) in most patients with PCOS.
- Myo-inositol is a safe and effective treatment to improve:
- ovarian function
- healthy metabolism
- healthy hormonal balance
While very comprehensive (which is why we included it here), that review’s a little old, so…
Check out this cutting edge (Jan 2023) study whose title says it all:
Inositol for fertility?
Just last year, Mendoza et al published that inositol supplementation, together with antioxidants, vitamins, and minerals, could be an optimal strategy to improve female fertility.
This built from Gambiole and Forte’s work, which laid out how inositol is a safe compound for many issues related to fertility and pregnancy. In particular, several clinical trials demonstrated that:
- inositol can have therapeutic effects in infertile women
- inositol can also be useful as a preventive treatment during pregnancy
- inositol could prevent the onset of neural tube defects
- inositol also reduces the occurrence of gestational diabetes
Due to the safety and efficiency of inositol, it can take the place of many drugs that are contraindicated in pregnancy. Basically: take this, and you’ll need fewer other drugs. Always a win!
Read: Myo-Inositol as a Key Supporter of Fertility and Physiological Gestation
Inositol For Weight Loss
We promised you “this alcohol sugar can reduce your BMI”, and we weren’t making it up!
Zarezadeh et al conducited a very extensive systematic review, and found:
- Oral inositol supplementation has positive effect on BMI reduction.
- Inositol in the form of myo-inositol had the strongest effect on BMI reduction.
- Participants with PCOS and/or who were overweight, experienced the most significant improvement of all.
Want some inositol?
As ever, we don’t sell it (or anything else), but for your convenience, here’s myo-inositol and d-chiro-inositol at a 40:1 ratio, available on Amazon!
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Age & Aging: What Can (And Can’t) We Do About It?
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How old do you want to be?
We asked you how old you are, and got an interesting spread of answers. This wasn’t too surprising; of course we have a general idea of who our readership is and we write accordingly.
What’s interesting is the gap for “40s”.
And, this wasn’t the case of a broken poll button, it’s something that crops up a lot in health-related sociological research. People who are most interested in taking extra care of their body are often:
- Younger people full of optimism about maintaining this perfectly healthy body forever
- Older people realizing “if I don’t want to suffer avoidable parts of age-related decline, now is the time to address these things”
In between, we often have a gap whereby people no longer have the optimism of youth, but do not yet feel the pressure of older age.
Which is not to say there aren’t 40-somethings who do care! Indeed, we know for a fact we have some subscribers in their 40s (and some in their 90s, too), just, they evidently didn’t vote in this poll.
Anyway, let’s bust some myths…
Aging is inevitable: True or False?
False, probably. That seems like a bold (and fortune-telling) claim, so let’s flip it to deconstruct it more logically:
Aging is, and always will be, unstoppable: True or False?
That has to be “False, probably”. To say “true” now sounds like an even bolder claim. Just like “the moon will always be out of reach”.
- When CPR was first developed, first-aiders were arrested for “interfering with a corpse”.
- Many diseases used to be death sentences that are now “take one of these in the morning”
- If you think this is an appeal to distant history, HIV+ status was a death sentence in the 90s. Now it’s “take one of these in the morning”.
But, this is an appeal to the past, and that’s not always a guarantee of the future. Where does the science stand currently? How is the research and development doing on slowing, halting, reversing aging?
We can slow aging: True or False?
True! There’s a difference between chronological age (i.e., how much time has passed while we’ve been alive) and biological age (i.e., what our diverse markers of aging look like).
Biological age often gets talked about as a simplified number, but it’s more complex than that, as we can age in different ways at different rates, for example:
- Visual markers of aging (e.g. wrinkles, graying hair)
- Performative markers of aging (e.g. mobility tests)
- Internal functional markers of aging (e.g. tests for cognitive decline, eyesight, hearing, etc)
- Cellular markers or aging (e.g. telomere length)
- …and more, but we only have so much room here
There are things we can do to slow most of those, including:
- Good nutrition (e.g. collagen and lutein, to keep specific parts of the body functioning “like those of a younger person” ranging from the joints to the eyes and brain)
- Anti-oxidant activity (e.g. eating anti-oxidant foods, supplementing with anti-oxidants or other things that mitigate oxidative stress, and avoiding foods that hasten oxidative stress which causes many kinds of aging)
- Getting good sleep (not to be underestimated for its restorative importance)
- Taking care of our cognitive health
- Taking care of our mental health (especially: reducing stress)
- Taking care of our mobility (prevention is better than cure!)
In the case of cognitive decline particularly, check out our previous article:
How To Reduce Your Alzheimer’s Risk
It’s too early to worry about… / It’s too late to do anything about… True or False?
False and False!
Many things that affect our health later in life are based on early-life choices and events. So it’s important for young people to take advantage of that. The earlier one adopts a healthy lifestyle, the better, because, and hold onto your hats for the shocker here: aging is cumulative.
However, that doesn’t mean that taking up healthy practices (or dropping unhealthy ones) is pointless later in life, even in one’s 70s and beyond!
Read about this and more from the National Institute of Aging:
What Do We Know About Healthy Aging?
We can halt aging: True or False?
False, for now at least. Our bodies are not statues; they are living organisms, constantly rebuilding themselves, constantly changing, every second of every day, for better or for worse. Every healthy or unhealthy choice you make, every beneficial or adverse experience you encounter, affects your body on a cellular level.
Your body never, ever, stops changing for as long as you live.
But…
We can reverse aging: True or False?
True! Contingently and with limitations, for now at least.
Remember what we said about your body constantly rebuilding itself? That goes for making itself better as well as making itself worse.
- If yesterday you couldn’t touch your toes and today you can, congratulations, you just got younger by a biological marker of aging.
- If you stopped drinking/smoking/eating a certain way last year, and this year your skin has fewer wrinkles, congratulations, you got younger by a biological marker of aging.
- If you’ve been exercising and now your heart rate variability and VO2 max are better than last month, congratulations, you got younger by a biological marker aging.
- If you took supplements that reduce and/or mitigate oxidative stress (e.g. resveratrol, CoQ10, l-theanine, etc), and you took up intermittent fasting, and now your telomeres are longer than they were six months ago, congratulations, you got younger by a biological marker of aging.
But those aren’t really being younger, we’ll still die when our time is up: True or False?
False and True, respectively.
Those kinds of things are really being younger, biologically. What else do you think being biologically younger is?
We may indeed die when our time is up, but (unless we suffer fatal accident or incident first) “when our time is up” is something that is decided mostly by the above factors.
Genetics—the closest thing we have to biological “fate”—accounts for only about 25% of our longevity-related health*.
Genes predispose, but they don’t predetermine.
*Read more: Human longevity: Genetics or Lifestyle? It takes two to tango
(from the Journal of Immunity and Ageing)
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The Silent Struggle – by L. William Ross-Child, MLC
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The vast majority of literature out there about ADHD is about children. And fair enough, there are enough popular misunderstandings of ADHD in children so it’s good those works exist… but what about adults?
Adults face different challenges than children, and have different responsibilities. People have different expectations. And even if you say you have ADHD… If you’re not behaving like a squirrel, they will often not accept this, much less understand it, because half the actual symptoms are not what most people think they are.
Ross-Child first lays out the neurobiological underpinnings of ADHD. This is a good place to start, because the physiology of it explains a lot of the other parts of it that can otherwise seem quite mystifying.
Thereafter, he looks one-by-one at the various cognitive and behavioral aspects of ADHD in adults, which will surely help the reader to better understand themself (or perhaps a loved one).
The next part of the book is given over to an exploration of ADHD and the differences it can make in the workplace, relationships (incl. ADHD and sex), as well as parenting, and how these things can all be navigated better by all concerned.
The style throughout is light and very readable, peppered with science made comprehensible. If there’s any flaw, it’s that there are only two pages of references in the bibliography—we’d have liked to have seen more.
All in all though, a really useful guide if you or a loved one has ADHD and you’d like strategies for working with (or around) this condition in a world not made to be kind to such.
Order your copy of “The Silent Struggle: Taking Charge of ADHD in Adults” from Amazon today!
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Healthy Mind In A Healthy Body
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The 8-minute piece of music “Weightless” by Marconi was created scientifically to lower the heart rate and relax the listener. How did they do it? You can read the British Academy of Sound Therapy’s explanation of the methodology here, but important results of the study were:
- “Weightless” was able to induce greater relaxation levels than a massage (increase of 6%).
- “Weightless” also induced an 11% increase in relaxation over all other relaxing music tracks in the study.
- “Weightless” was also subjectively rated as more relaxing than any other music by all the participants.
Try it for yourself!
Click Here If The Embedded Video Doesn’t Load Automatically!
Isn’t that better? Whenever you’re ready, read on…
Today we’re going to share a technique for dealing with difficult emotions. The technique is used in Cognitive Behavioral Therapy (CBT), and Dialectical Behavior Therapy (DBT), and it’s called RAIN:
- Recognizing: ask yourself “what is it that I’m feeling?”, and put a name to it. It could be anger, despair, fear, frustration, anxiety, overwhelm etc.
- Accepting: “OK, so, I’m feeling ________”. There’s no point in denying it, or being defensive about it, these things won’t help you. For now, just accept it.
- Investigating: “Why am I feeling ________?” Maybe there is an obvious reason, maybe you need to dig for a reason—or dig deeper for the real reason. Most bad feelings are driven by some sort of fear or insecurity, so that can be a good avenue for examination. Important: your feelings may be rational or irrational. That’s fine. This is a time for investigating, not judging.
- Non-Identification: not making whatever it is you’re feeling into a part of you. Once you get too attached to “I am jealous”, “I am angry”, “I am sad” etc, it can be difficult to manage something that has become a part of your personality; you’ll defend your jealousy, anger, sadness etc rather than tackle it.
As a CBT tool, this is something you can do for yourself at any time. It won’t magically solve your problems, but it can stop you from spiralling into a state of crisis, and get you back on a more useful track.
As a DBT tool, to give this its full strength, ideally now you will communicate what you’re feeling, to somebody you trust, perhaps a partner or friend, for instance.
Humans are fundamentally social creatures, and we achieve our greatest strengths when we support each other—and that also means sometimes seeking and accepting support!
Do you have a good technique you’d like to share? Reply to this email and let us know!
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The Herbal Supplement That Rivals Prozac
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Flower Power: St. John’s Wort’s Drug-Level Effectiveness
St. John’s wort is a small yellow flower, extract of which can be bought inexpensively off-the-shelf in pretty much any pharmacy in most places.
It’s sold and used as a herbal mood-brightener.
Does it work?
Yes! It’s actually very effective. This is really uncontroversial, so we’ll keep it brief.
The main findings of studies are that St. John’s wort not only gives significant benefits over placebo, but also works about as well as prescription anti-depressants:
A systematic review of St. John’s wort for major depressive disorder
They also found that fewer people stop taking it, compared to how many stop taking antidepressants. It’s not known how much of this is because of its inexpensive, freely-accessible nature, and how much might be because it gave them fewer adverse side effects:
Clinical use of Hypericum perforatum (St John’s wort) in depression: A meta-analysis
How does it work?
First and foremost, it’s an SSRI—a selective serotonin reuptake inhibitor. Basically, it doesn’t add serotonin, but it makes whatever serotonin you have, last longer. Same as most prescription antidepressants. It also affects adenosine and GABA pathways, which in lay terms, means it promotes feelings of relaxation, in a similar way to many prescription antianxiety medications.
Mechanism of action of St John’s wort in depression: what is known?
Any problems we should know about?
Yes, definitely. To quote directly from the National Center for Complementary and Integrative Health:
St. John’s wort can weaken the effects of many medicines, including crucially important medicines such as:
- Antidepressants
- Birth control pills
- Cyclosporine, which prevents the body from rejecting transplanted organs
- Some heart medications, including digoxin and ivabradine
- Some HIV drugs, including indinavir and nevirapine
- Some cancer medications, including irinotecan and imatinib
- Warfarin, an anticoagulant (blood thinner)
- Certain statins, including simvastatin
I’ve read all that, and want to try it!
As ever, we don’t sell it (or anything else), but here’s an example product on Amazon.
Please be safe and do check with your doctor and/or pharmacist, though!
Don’t Forget…
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Learn to Age Gracefully
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