When Carbs, Proteins, & Fats Switch Metabolic Roles
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Strange Things Happening In The Islets Of Langerhans
It is generally known and widely accepted that carbs have the biggest effect on blood sugar levels (and thus insulin response), fats less so, and protein least of all.
And yet, there was a groundbreaking study published yesterday which found:
❝Glucose is the well-known driver of insulin, but we were surprised to see such high variability, with some individuals showing a strong response to proteins, and others to fats, which had never been characterized before.
Insulin plays a major role in human health, in everything from diabetes, where it is too low*, to obesity, weight gain and even some forms of cancer, where it is too high.
These findings lay the groundwork for personalized nutrition that could transform how we treat and manage a range of conditions.❞
*saying ”too low” here is potentially misleading without clarification; yes, Type 1 Diabetics will have too little [endogenous] insulin (because the pancreas is at war with itself and thus isn’t producing useful quantities of insulin, if any). Type 2, however, is more a case of acquired insulin insensitivity, because of having too much at once too often, thus the body stops listening to it, “boy who cried wolf”-style, and the pancreas also starts to get fatigued from producing so much insulin that’s often getting ignored, and does eventually produce less and less while needing more and more insulin to get the same response, so it can be legitimately said “there’s not enough”, but that’s more of a subjective outcome than an objective cause.
Back to the study itself, though…
What they found, and how they found it
Researchers took pancreatic islets from 140 heterogenous donors (varied in age and sex; ostensibly mostly non-diabetic donors, but they acknowledge type 2 diabetes could potentially have gone undiagnosed in some donors*) and tested cell cultures from each with various carbs, proteins, and fats.
They found the expected results in most of the cases, but around 9% responded more strongly to the fats than the carbs (even more strongly than to glucose specifically), and even more surprisingly 8% responded more strongly to the proteins.
*there were also some known type 2 diabetics amongst the donors; as expected, those had a poor insulin response to glucose, but their insulin response to proteins and fats were largely unaffected.
What this means
While this is, in essence, a pilot study (the researchers called for larger and more varied studies, as well as in vivo human studies), the implications so far are important:
It appears that, for a minority of people, a lot of (generally considered very good) antidiabetic advice may not be working in the way previously understood. They’re going to (for example) put fat on their carbs to reduce the blood sugar spike, which will technically still work, but the insulin response is going to be briefly spiked anyway, because of the fats, which very insulin response is what will lower the blood sugars.
In practical terms, there’s not a lot we can do about this at home just yet—even continuous glucose monitors won’t tell us precisely, because they’re monitoring glucose, not the insulin response. We could probably measure everything and do some math and work out what our insulin response has been like based on the pace of change in blood sugar levels (which won’t decrease without insulin to allow such), but even that is at best grounds for a hypothesis for now.
Hopefully, more publicly-available tests will be developed soon, enabling us all to know our “insulin response type” per the proteome predictors discovered in this study, rather than having to just blindly bet on it being “normal”.
Ironically, this very response may have hidden itself for a while—if taking fats raised insulin response without raising blood sugar levels, then if blood sugar levels are the only thing being measured, all we’ll see is “took fats at dinner; blood sugars returned to normal more quickly than when taking carbs without fats”.
You can read the study in full here:
Proteomic predictors of individualized nutrient-specific insulin secretion in health and disease
Want to know more about blood sugar management?
You might like to catch up on:
- 10 Ways To Balance Your Blood Sugars
- Track Your Blood Sugars For Better Personalized Health
- How To Turn Back The Clock On Insulin Resistance
Take care!
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Survival of the Prettiest – by Dr. Nancy Etcoff
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Beauty is in the eye of the beholder, right? And what does it matter, in this modern world, especially if we are already in a happy stable partnership?
The science of it, as it turns out, is less poetic. Not only is evolutionary psychology still the foundation of our perception of human beauty (yes, even if we have zero possibility of further procreation personally), but also, its effects are far, far wider than partner selection.
From how nice people are to you, to how much they trust you, to how easily they will forgive a (real or perceived) misdeed, to what kind of medical care you get (or don’t), your looks shape your experiences.
In this very easy-reading work that nevertheless contains very many references, Dr. Etcoff explores the science of beauty. Not just what traits are attractive and why, but also, what they will do for (or against) us—in concrete terms, with numbers.
Bottom line: if you’d like to better understand the subconscious biases held by yourself and others, this book is a top-tier primer.
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Pistachios vs Pine Nuts – Which is Healthier?
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Our Verdict
When comparing pistachios to pine nuts, we picked the pistachios.
Why?
First looking at the macros, pistachios have nearly 2x the protein while pine nuts have nearly 2x the fat. The fats are healthy in moderation (mostly polyunsaturated, a fair portion of monounsaturated, and a little saturated), but we’re going to value the protein content higher. Also, pistachios have approximately 2x the carbs, and/but nearly 3x the fiber. All in all, we’ll call this section a moderate win for pistachios.
When it comes to vitamins, pistachios have more of vitamins A, B1, B5, B6, B9, and C, while pine nuts have more of vitamins B2, B3, E, K, and choline. All in all, pistachios are scraping a 6:5 win here, or we could call it a tie if we want to value pine nuts’ vitamins more (due to the difference in how many foods each vitamin is found in, and thus the likelihood of having a deficiency or not).
In the category of minerals, pistachios have more calcium, copper, potassium, and selenium, while pine nuts have more iron, magnesium, manganese, and zinc. This would be a tie if we just call it 4:4, but what’s worth noting is that while both of these nuts are a good source of most of the minerals mentioned, pine nuts aren’t a very good source of calcium or selenium, so we’re going to declare this section a very marginal win for pistachios.
Adding up the moderate win, the scraped win, and the barely scraped win, all adds up to a win for pistachios. However, as you might have noticed, both are great so do enjoy both if you can!
Want to learn more?
You might like to read:
Why You Should Diversify Your Nuts
Take care!
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The Medicinal Chef – by Dale Pinnock
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The philosophy here is very much like our own—to borrow from Hippocrates: “let food be thy medicine”. Obviously please do also let medicine be thy medicine if you need it, but the point is that food is a very good starting place for combatting a lot of disease.
To this end, instead of labelling the recipes with such things as “V”, “Ve”, “GF” and suchlike, it assumes we can tell those things from the ingredients lists, and instead labels things per what they are especially good for:
- S: skin
- J: joints & bones
- R: respiratory system
- I: immune system
- M: metabolic health
- N: nervous system and mental health
- H: heart and circulation
- D: digestive system
- U: reproductive & urinary systems
As for the recipes themselves… They’re a lot like the recipes we share here at 10almonds in their healthiness, skill level, and balance of easy-to-find ingredients with the occasional “order it online” items that punch above their weight. In fact, we’ll probably modify some of the recipes for sharing here.
Bottom line: if you’re looking for genuinely healthy recipes that are neither too basic nor too arcane, this book has about 80 of them.
Click here to check out The Medicinal Chef: Healthy Every Day, and be healthy every day!
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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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What’s So Special About Alpha-Lipoic Acid?
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The Access-All-Areas Antioxidant
Alpha-Lipoic Acid (ALA) is one of the most bioavailable antioxidants in existence. A bold claim, but most antioxidants are only water-soluble or fat-soluble, whereas ALA is both. This has far-reaching implications—and we mean that literally, because its “go everywhere” status means that it can access (and operate in) all living cells of the human body.
We make it inside our body, and we can also get it in our diet, or take it as a supplement.
What foods contain it?
The richest food sources are:
- For the meat-eaters: organ meats
- For everyone: broccoli, tomatoes, & spinach
However, supplements are more efficient at delivering it, by several orders of magnitude:
Read more: Lipoic acid – biological activity and therapeutic potential
What are its benefits?
Most of its benefits are the usual benefits you would expect from any antioxidant, just, more of it. In particular, reduced inflammation and slowed skin aging are common reasons that people take ALA as a supplement.
Does it really reduce inflammation?
Yes, it does. This one’s not at all controversial, as this systematic review of studies shows:
(C-reactive protein is a marker of inflammation)
Does it really reduce skin aging?
Again yes—which again is not surprising for such a potent antioxidant; remember that oxidative stress is one of the main agonists of cellular aging:
As a special feature, ALA shows particular strength against sun-related skin aging, because of how it protects against UV radiation and increases levels of gluthianone, which also helps:
- Photochemical stability of lipoic acid and its impact on skin ageing
- Modern approach to topical treatment of aging skin
Where can I get some?
We don’t sell it, but here for your convenience is an example product on Amazon
Enjoy!
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The Distracted Mind – by Dr. Adam Gazzaley and Dr. Larry Rosen
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Yes, yes, we know, unplug once in a while. But what else do this highly-qualified pair of neuroscientists have to offer?
Rather than being a book for the sake of being a book, with lots of fluff and the usual advice about single-tasking, the authors start with a reframe:
Neurologically speaking, the hit of dopamine we get when looking for information is the exact same as the hit of dopamine that we, a couple of hundred thousand years ago, got when looking for nuts and berries.
- When we don’t find them, we become stressed, and search more.
- When we do find them, we are encouraged and search more nearby, and to the other side of nearby, and near around, to find more.
But in the case of information (be it useful information or celebrity gossip or anything in between), the Internet means that’s always available now.
So, we jitter around like squirrels, hopping from one to the next to the next.
A strength of this book is where it goes from there. Specifically, what evidence-based practices will actually keep our squirrel-brain focused… and which are wishful thinking for anyone who lives in this century.
Bringing original research from their own labs, as well as studies taken from elsewhere, the authors present a science-based toolkit of genuinely useful resources for actual focus.
Bottom line: if you think you could really optimize your life if you could just get on track and stay on track, this is the book for you.
Click here to check out The Distracted Mind, and get yours to focus!
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