
The Best Form Of Sugar During Exercise
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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 😎
❝What is the best form of sugar for an energy kick during exercise? Both type of sugar eg glicoae fructose dextrose etc and medium, ie drink, gel, solids etc❞
Great question! Let’s be clear first that we’re going to answer this specifically for the context of during exercise.
Because, if you’re not actively exercising strenuously right at the time when you’re taking the various things we’re going to be talking about, the results will not be the same.
For scenarios that are anything less than “I am exercising right now and my muscles (not joints, or anything else) are feeling the burn”, then instead please see this:
Snacks & Hacks: Eating For Energy (In Ways That Actually Work)
Because, to answer your question, we’re going to be going 100% against the first piece of advice in that article, which was “Skip the quasi-injectables”, i.e., anything marketed as very quick release. Those things are useful for diabetics to have handy just in case of needing to urgently correct a hypo, but for most people most of the time, they’re not. See also:
Which Sugars Are Healthier, And Which Are Just The Same?
However…
When strenuously exercising in a way that is taxing our muscles, we do not have to worry about the usual problem of messing up our glucose metabolism by overloading our body with sugars faster than it can use it (thus: it has to hurriedly convert glucose and shove it anywhere it’ll fit to put it away, which is very bad for us), because right now, in the exercise scenario we’re describing, the body is already running its fastest metabolism and is grabbing glucose anywhere it can find it.
Which brings us to our first key: the best type of sugar for this purpose is glucose. Because:
- glucose: the body can use immediately and easily convert whatever’s spare to glycogen (a polysaccharide of glucose) for storage
- fructose: the body cannot use immediately and any conversion of fructose to glycogen has to happen in the liver, so if you take too much fructose (without anything to slow it down, such as the fiber in whole fruit), you’re not only not going to get usable energy (the sugar is just going to be there in your bloodstream, circulating, not getting used, because it doesn’t trigger insulin release and insulin is the gatekeeper that allows sugar to be used), but also, it’s going to tax the liver, which if done to excess, is how we get non-alcoholic fatty liver disease.
- sucrose: is just a disaccharide of glucose and fructose, so it first gets broken down into those, and then its constituent parts get processed as above. Other disaccharides you’ll see mentioned sometimes are maltose and lactose, but again, they’re just an extra step removed from useful metabolism, so to save space, we’ll leave it at that for those today.
- dextrose: is just glucose, but when the labeller is feeling fancy. It’s technically informational because it specifies what isomer of glucose it is, but basically all glucose found in food is d-glucose, i.e. dextrose. Other isomers of glucose can be synthesized (very expensively) in laboratories or potentially found in obscure places (the universe is vast and weird), but in short: unless someone’s going to extreme lengths to get something else, all glucose we encounter is dextrose, and all (absolutely all) dextrose is glucose.
We’d like to show scientific papers contesting these head-to-head for empirical proof, but since the above is basic chemistry and physiology, all we could find is papers taking this for granted and stating in their initial premise that sports drinks, gels, bars usually contain glucose as their main sugar, potentially with some fructose and sucrose. Like this one:
A Comprehensive Study on Sports and Energy Drinks
As for how to take it, again this is the complete opposite of our usual health advice of “don’t drink your calories”, because in this case, for once…
(and again, we must emphasize: only while actively doing strenuous exercise that is making specifically your muscles burn, not your joints or anything else; if your joints are burning you need to rest and definitely don’t spike your blood sugars because that will worsen inflammation)
…just this once, we do want those sugars to be zipping straight into the blood. Which means: liquid is best for this purpose.
And when we say liquid: gel is the same as a drink, so far as the body is concerned, provided the body in question is adequately hydrated (i.e., you are also drinking water).
Here are a pair of studies (by the same team, with the same general methodology), testing things head-to-head, with endurance cyclists on 6-hour stationary cycle rides:
CHO Oxidation from a CHO Gel Compared with a Drink during Exercise
Meanwhile, liquid beat solid, but only significantly so from the 90-minute mark onwards, and even that significant difference was modest (i.e. it’s clinically significant, it’s a statistically reliable result and improbable as random happenstance, but the actual size of the difference was not huge):
Oxidation of Solid versus Liquid CHO Sources during Exercise
We would hypothesize that the reason that liquids only barely outperformed solids for this task is precisely because the solids in question were also designed for the task. When a company makes a fast-release energy bar, they don’t load it with fiber to slow it down. Which differentiates this greatly from, say, getting one’s sugars from whole fruit.
If the study had compared apples to apple juice, we hypothesize the results would have been very different. But alas, if that study has been done, we couldn’t find it.
Today has been all about what’s best during exercise, so let’s quickly finish with a note on what’s best before and after:
Before: What To Eat, Take, And Do Before A Workout
After: Overdone It? How To Speed Up Recovery After Exercise
Take care!
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Chew On This… But Don’t Swallow − by Dr. Blanche Grube & Anita Vasquez-Tibau
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Dr. Blanche Grube is a dentist with over 40 years of experience, and Anita Vasquez-Tibau is a well-respected research scientist with many peer-reviewed publications to her name, and both have lectured extensively.
So, what do they want us to know?
It’s mostly about the iatrogenic (i.e., caused by treatment) harm done by many common conventional dental practices (including dental mercury amalgams, metal crowns, root canals, implants, and even braces), and how we can avoid such, and enjoy better treatment instead.
After an introductory overview of the basics (and also where her own work came from in the first place, namely, her own root canals that were established as largely responsible for her leukemia), the largest part of the book is practical advice, laid out practically. What things come with what risks, what things get advertised differently than they really are, and which way to go in the case of unenviable situations where one must choose the “least bad” option out of a bunch of bad options.
Lastly, she discusses a range of solutions that can help side-step most problems, provided one implements them early. The good news is, they are “do these small things every day” recommendations, not “get this prophylactic surgical treatment” options. And yes, they are beyond the obvious of good dental hygiene, though she does cover that too.
The style is in part narrative, in part explanatory, and/but very readable throughout.
Bottom line: if you love having teeth and/but don’t love going to the dentist, this book will help you take good care of yourself, and also mean you can safely and informedly advocate for yourself if you do find yourself in the dentist’s office.
Click here to check out Chew On This… But Don’t Swallow, and protect your teeth!
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Pomegranate vs Cranberries – Which is Healthier?
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Our Verdict
When comparing pomegranate to cranberries, we picked the pomegranate.
Why?
Starting with the macros: pomegranate has nearly 4x the protein (actually quite a lot for a fruit, but this is not too surprising—it’s because we are eating the seeds!), and slightly more carbs and fiber. Their glycemic indices are comparable, both being low GI foods. While both of these fruits have excellent macro profiles, we say the pomegranate is slightly better, because of the protein, and when it comes to the carbs and fiber, since they balance each other out, we’ll go with the option that’s more nutritionally dense. We like foods that add more nutrients!
In the category of vitamins, pomegranate is higher in vitamins B1, B2, B3, B5, B6, B9, K, and choline, while cranberry is higher in vitamins A, C, and E. Both are very respectable profiles, but pomegranate wins on strength of numbers (and also some higher margins of difference).
When it comes to minerals, it is not close; pomegranate is higher in calcium, copper, iron, magnesium, phosphorus, potassium, selenium, and zinc, while cranberry is higher in manganese. An easy win for pomegranate here.
Both of these fruits have additional “special” properties, though it’s worth noting that:
- pomegranate’s bonus properties, which are too many to list here, but we link to an article below, are mostly in its peel (so dry it, and grind it into a powder supplement, that can be worked into foods, or used like an instant fruit tea, just without the sugar)
- cranberries’ bonus properties (including: famously very good at reducing UTI risk) come with some warnings, including that they may increase the risk of kidney stones if you are prone to such, and also that cranberries have anti-clotting effects, which are great for heart health but can be a risk of you’re on blood thinners or have a bleeding disorder.
You can read about both of these fruits’ special properties in more detail below:
Want to learn more?
You might like to read:
- Health Benefits Of Cranberries (But: You’d Better Watch Out)
- Pomegranate’s Health Gifts Are Mostly In Its Peel
Take care!
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Peaceful Kitchen – by Catherine Perez
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The author, a keen cook and Registered Dietician with a Master’s in same, covers the basics of the science of nutrition as relevant to her recipes, but first and foremost this is not a science textbook—it’s a cookbook, and its pages contain more love for the art than citations for the (perfectly respectable) science.
Mexican and Dominican cuisine are the main influences in this book, but there are dishes from around the world too.
The recipes themselves are… Comparable in difficulty to the things we often feature in our recipes section here at 10almonds. They’re probably not winning any restaurants Michelin stars, but they’re not exactly student survival recipes either. They’re made from mostly non-obscure whole foods, nutritionally-dense ingredients at that, with minimal processed foods involved.
That said, she does take a “add, don’t subtract” approach to nutrition, i.e. focussing more on adding in diversity of plants than on “don’t eat this; don’t eat that” mandates.
If there’s any criticism to be levelled at the book, it’s that in most cases we’d multiply the spices severalfold, but that’s not a big problem as readers can always judge that individually; she’s given the basic information of which spices in which proportions, which is the key knowledge.
Bottom line: if you’re looking to expand your plant-based cooking repertoire, this one is a fine choice.
Click here to check out Peaceful Kitchen, and try some new things!
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What Menopause Does To The Heart
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World Menopause Day: Menopause & Cardiovascular Disease Risk
Today, the 18th of October, is World Menopause Day.
The theme for this year is cardiovascular disease (CVD), and if your first reaction is to wonder what that has to do with the menopause, then this is the reason why it’s being featured. Much of the menopause and its effects are shrouded in mystery; not because of a lack of science (though sometimes a bit of that too), but rather, because it is popularly considered an unimportant, semi-taboo topic.
So, let’s be the change we want to see, and try to fix that!
What does CVD have to do with the menopause?
To quote Dr. Anjana Nair:
❝The metabolic and clinical factors secondary to menopause, such as dyslipidemia, insulin resistance, fat redistribution and systemic hypertension, contribute to the accelerated risk for cardiovascular aging and disease.
Atherosclerosis appears to be the end result of the interaction between cardiovascular risk factors and their accentuation during the perimenopausal period.
The increased cardiovascular risk in menopause stems from the exaggerated effects of changing physiology on the cardiovascular system.❞
Source: Cardiovascular Changes in Menopause
See also: Menopause-associated risk of cardiovascular disease
Can we do anything about it?
Yes, we can! Here be science:
- Menopause Transition and Cardiovascular Disease Risk: Implications for Timing of Early Prevention: A Scientific Statement From the American Heart Association
- Cardiovascular risk in menopausal women and our evolving understanding of menopausal hormone therapy: risks, benefits, and current guidelines for use
This (in few words: get your hormone levels checked, and consider HRT if appropriate) is consistent with the advice from gynecologist Dr. Jen Gunter, whom we featured back in August:
What You Should Have Been Told About The Menopause Beforehand
What about lifestyle changes?
We definitely can do some good things; here’s what the science has to say:
- Mediterranean diet: yes, evidence-based
- High soy consumption: mixed evidence, unclear. So, eat it if you want, don’t if you don’t.
- Supplements e.g. vitamins and minerals: yes, evidence-based.
- Supplements e.g. herbal preparations: many may help, but watch out for adverse interactions with meds. Check with your pharmacist or doctor.
- Supplements; specifically CBD: not enough evidence yet
- Exercise: yes, evidence-based—especially low-impact high-resistance training, for bone strength, as well as regular moderate-intensity exercise and/or High-Intensity Interval Training, to guard against CVD.
For a full low-down on all of these:
Revealing the evidence-based lifestyle solutions to managing your menopause symptoms
Want to know more?
You can get the International Menopause Society’s free downloadable booklet here:
Menopause & Cardiovascular Disease: What Women Need To Know
You may also like our previous main feature:
What Does “Balance Your Hormones” Even Mean?
Take care!
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Mango vs Guava – Which is Healthier?
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Our Verdict
When comparing mango to guava, we picked the guava.
Why?
Looking at macros first, these two fruits are about equal on carbs (nominally mango has more, but it’s by a truly tiny margin), while guava has more than 3x the protein and more than 3x the fiber. A clear win for guava.
In terms of vitamins, mango has more of vitamins A, E, and K, while guava has more of vitamins B1, B2, B3, B5, B7, B9, and C. Another win for guava.
In the category of minerals, mango is not higher in any minerals, while guava is higher in calcium, copper, iron, magnesium, manganese, phosphorus, potassium, and zinc.
In short, enjoy both; both are healthy. But if you’re choosing one, there’s a clear winner here, and it’s guava.
Want to learn more?
You might like to read:
What’s Your Plant Diversity Score?
Take care!
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Getting to Neutral – by Trevor Moawad
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We all know that a pessimistic outlook is self-defeating… And yet, toxic positivity can also be a set-up for failure! At some point, reckless faith in the kindly nature of the universe will get crushed, badly. Sometimes that point is a low point in life… sometimes it’s six times a day. But one thing’s for sure: we can’t “just decide everything will go great!” because the world just doesn’t work that way.
That’s where Trevor Moawad comes in. “Getting to neutral” is not a popular selling point. Everyone wants joy, abundance, and high after high. And neutrality itself is often associated with boredom and soullessness. But, Moawad argues, it doesn’t have to be that way.
This book’s goal—which it accomplishes well—is to provide a framework for being a genuine realist. What does that mean?
“I’m not a pessimist; I’m a realist” – every pessimist ever.
^Not that. That’s not what it means. What it means instead is:
- Hope for the best
- Prepare for the worst
- Adapt as you go
…taking care to use past experiences to inform future decisions, but without falling into the trap of thinking that because something happened a certain way before, it always will in the future.
To be rational, in short. Consciously and actively rational.
Feel the highs! Feel the lows! But keep your baseline when actually making decisions.
Bottom line: this book is as much an antidote to pessimism and self-defeat, as it is to reckless optimism and resultant fragility. Highly recommendable.
Click here to check out “Getting to Neutral” and start creating your best, most reason-based life!
PS: in this book, Moawad draws heavily from his own experiences of battling adversity in the form of cancer—of which he died, before this book’s publication. A poignant reminder that he was right: we won’t always get the most positive outcome of any given situation, so what matters the most is making the best use of the time we have.
Don’t Forget…
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