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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Water: For Health, for Healing, for Life – by Dr. Fereydoon Batmanghelidj
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Notwithstanding the cover’s declaration of “you’re not sick, you’re thirsty”, in fact this book largely makes the argument that both are often the case simultaneously, and that dehydration plays a bigger role in disease pathogenesis and progression than it is credited for.
You may be wondering: is this 304 pages to say “drink some water”?
And the answer is: yes, somewhat. However, it also goes into detail of how and why it is relevant in each case, which means that there will be, once you have read this, more chance of your dehydrated and thus acutely-less-functional brain going “oh, I remember what this is” rather than just soldiering on dehydrated because you are too dehydrated to remember to hydrate.
The strength of the book really is in motivation; understanding why things happen the way they do and thus why they matter, is a huge part of then actually being motivated to do something about it. And let’s face it, a “yes, I will focus on my hydration” health kick is typically sustained for less time than many more noticeable (e.g. diet and exercise) healthy lifestyle adjustments, precisely because there’s less there to focus on so it gets forgotten.
The style is a little dated (the book is from 2003, and the style feels like it is from the 80s, which is when the author was doing most of his research, before launching his first book, which we haven’t read-and-reviewed yet, in 1992) but perfectly clear and pleasant to read.
Bottom line: this book may well get you to actually drink more water
Click here to check out Water: For Health, for Healing, for Life, and get hydrating!
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How to Permanently Loosen a Tight Psoas
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What Is Your Psoas?
Your psoas is a deep muscle in your lower back and hip area that connects your spine to your thigh bone. It helps you bend your hips and spine, making it a hip flexor.
In today’s video, Your Wellness Nerd (the YouTube channel behind the video below) has revealed some great tips on loosening said tight hip flexors!
How to loosen them
First off, the big reveal…your tight psoas is likely stemming from an overlooked cause: your lower back! The video kicks off with a simple technique to loosen up that stiff area in your lower back. All you need is a foam roller.
But, before diving into the exercises, it’s essential to gauge your current flexibility. A basic hip flexor stretch serves as a pre-test.
Note: the goal here isn’t to stretch, but rather to feel how tight you are.
After testing, it’s time to roll…literally. Working through the lower back, use your roller or tennis ball to any find stiff spots and loosen them out; those spots are likely increasing the tension on your psoas.
After some rolling, retest with the hip flexor stretch. Chances are, you’ll feel more mobility and less tightness right away.
Note: this video focuses on chronic psoas issues. If you have sore psoas from a muscular workout, you may want to read our piece on speeding up muscle recovery.
Is That All?
But wait, there’s more! The video also covers two more exercises specifically targeting the psoas. This one’s hard to describe, so we recommend watching the video. However, to provide an overview, you’re doing the “classic couch stretch”, but with a few alterations.
Next, the tennis ball technique zeroes in on specific tight spots in the psoas. By lying on the ball and adjusting its position around the hip area, you can likely release some deeply held tension.
Additionally, some of our readers advocate for acupuncture for psoas relief – we’ve done an acupuncture myth-busting article here for reference.
Other Sources
If you’re looking for some more in-depth guides on stretching your psoas, and your body in general, we’ve made a range of 1-minute summaries of books that specifically target stretching:
- 11 Minutes to Pain-Free Hips (perfect for psoas muscles)
- Stretching Scientifically
- Stretching & Mobility
- Stretching to Stay Young
The final takeaway? If you’re constantly battling tight psoas muscles despite trying different exercises and stretches, it might be time to look at your lower back and your daily habits. This video isn’t just a band-aid fix; it’s about addressing the root cause for long-term relief:
How did you find that video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!
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TED-x | Sugar Is Not A Treat
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Dr. Jody Stanislaw offers a reframe:
Not so sweet
The pancreas isn’t an organ that most people think about a lot, but it regulates blood sugar levels by releasing insulin as needed. Overworking the beta cells in the pancreas that do this, can lead to their burnout, which contributes to prediabetes and type 2 diabetes.
If, like Dr. Stanislaw, you already have Type 1 Diabetes (an autoimmune condition usually diagnosed in early childhood and unrelated to what one has or hasn’t been eating), then your pancreas is already not doing much, or rather, it’s too busy fighting itself to actually do its job. This means that taking exogenous insulin (i.e., from the pharmacy rather than from your dysfunctional pancreas) will be necessary for survival. Most people with T1D will have an insulin pump if possible, to provide insulin as needed. Others will rely on injections.
So, does that mean that T1D is a free pass on the diabetes-related health risks of sugar, since after all, you already have diabetes anyway?
Nope, no such luck. Because in the case of T1D, if you then get insulin resistance on top of the fact you don’t make your own insulin, then the insulin that you are taking will stop working, and ultimately you will die. So, that’s pretty important to avoid!
Thus, Dr. Stanislaw has strong opinions on diet in this regard, and she recommends her own protocol regardless of whether you are diabetic or not:
- Avoid refined carbs (e.g. bread, pasta, or foods with added sugars).
- Start the day with protein-rich foods for balanced blood sugar.
- Drink water to curb sugar cravings caused by dehydration.
- Use low-carb substitutes (e.g. cauliflower pizza crust, zucchini noodles, etc).
While Dr. Stanislaw does recommend an 80:20 approach to eating in general (80% healthy foods, 20% indulgences), she does strongly suggest not putting sugar even into the “indulgences” 20%, because a) a diet of 20% sugar is not at all good, and b) the dangers of sugar consumption are particularly high, so it is better reframed not as a treat to be enjoyed, but rather as a threat to be avoided.
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Take care!
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The Exercise That Protects Your Brain
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The Neuroscientist In The Gym
This is Dr. Wendy Suzuki. She’s a neuroscientist, and an expert in the neurobiology of memory, as well as neuroplasticity, and the role of exercise in neuroprotection.
We’ve sneakily semi-featured her before when we shared her Big Think talk:
Brain Benefits In Three Months… Through Walking?
Today we’re going to expand on that a little!
A Quick Recap
To share the absolute key points of that already fairly streamlined rundown:
- Exercise boosts levels of neurotransmitters such as dopamine and serotonin (and, which wasn’t mentioned there, noradrenaline)
- These are responsible for motivation, happiness, and focus (amongst other things)
- Persistent exercise boosts certain regions of the brain in particular, most notably the pre-frontal cortex and the hippocampi*
- These are responsible for planning and memory (amongst other things)
Dr. Suzuki advocates for stepping up your exercise routine if you can, with more exercise generally being better than less (unless you have some special medical reason why that’s not the case for you).
*often referred to in the singular as the hippocampus, but you have one on each side of your brain (unless a serious accident/incident destroyed one, but you’ll know if that applies to you, unless you lost both, in which case you will not remember about it).
What kind(s) of workout?
While a varied workout is best for overall health, for these brain benefits specifically, what’s most important is that it raises your heart rate.
This is why in her Big Think talk we shared before, she talks about the benefits of taking a brisk walk daily. See also:
If that’s not your thing, though (and/or is for whatever reason an inaccessible form of exercise for you), there is almost certainly some kind of High Intensity Interval Training that is a possibility for you. That might sound intimidating, but if you have a bit of floor and can exercise for one minute at a time, then HIIT is an option for you:
How To Do HIIT (Without Wrecking Your Body)
Dr. Suzuki herself is an ardent fan of “intenSati” which blends cardio workouts with yoga for holistic mind-and-body fitness. In fact, she loves it so much that she became a certified exercise instructor:
How much is enough?
It’s natural to want to know the minimum we can do to get results, but Dr. Suzuki would like us to bear in mind that when it comes to our time spent exercising, it’s not so much an expense of time as an investment in time:
❝Exercise is something that when you spend time on it, it will buy you time when you start to work❞
Read more: A Neuroscientist Experimented on Her Students and Found a Powerful Way to Improve Brain Function
Ok, but we really want to know how much!
Dr. Suzuki recommends at least three to four 30-minute exercise sessions per week.
Note: this adds up to less than the recommended 150 minutes of moderate exercise per week, but high-intensity exercise counts for twice the minutes for these purposes, e.g. 1 minute of high-intensity exercise is worth 2 minutes of moderate exercise.
How soon will we see benefits?
Benefits start immediately, but stack up cumulatively with continued long-term exercise:
❝My lab showed that a single workout can improve your ability to shift and focus attention, and that focus improvement will last for at least two hours. ❞
…which is a great start, but what’s more exciting is…
❝The more you’re working out, the bigger and stronger your hippocampus and prefrontal cortex gets. Why is that important?
Because the prefrontal cortex and the hippocampus are the two areas that are most susceptible to neurodegenerative diseases and normal cognitive decline in aging. ❞
In other words, while improving your heart rate through regular exercise will help prevent neurodegeneration by the usual mechanism of reducing neuroinflammation… It’ll also build the parts of your brain most susceptible to decline, meaning that when/if decline sets in, it’ll take a lot longer to get to a critical level of degradation, because it had more to start with.
Read more:
Inspir Modern Senior Living | Dr. Wendy Suzuki Boosts Brain Health with Exercise
Want more from Dr. Suzuki?
You might enjoy her TED talk:
Click Here If The Embedded Video Doesn’t Load Automatically
Prefer text? TED.com has a transcript for you
Prefer lots of text? You might like her book, which we haven’t reviewed yet but will soon:
Enjoy!
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- Exercise boosts levels of neurotransmitters such as dopamine and serotonin (and, which wasn’t mentioned there, noradrenaline)
-
The Ultimate Booster
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Winning The Biological Arms Race
The human immune system (and indeed, other immune systems, but we are all humans here, after all) is in a constant state of war with pathogens, and that war is a constant biological arms race:
- We improve our defenses and destroy the attackers; the 1% of pathogens that survived now “know” how to counter that trick.
- The pathogens wreak havoc in our systems; the n% of us that survive now have immune systems that “know” how to counter that trick.
Vaccines are a mighty tool in our favor here, because they’re the technology that stops our n% from also being a very low number.
With vaccines, we can effectively pass on established defenses onto the population at large, as this cute video explains very well and very simply in 57 seconds:
Click Here If The Embedded Video Doesn’t Load Automatically!
The problem with vaccines
The problem is that this accelerates the arms race. It’s like a chess game where we are able to respond to every move quickly (which is good for us), and/but this means passing the move over to our opponent sooner.
That problem’s hard to avoid, because the alternative has always been “let people die in much larger numbers”.
Traditional vs mRNA vaccines
A quick refresher before we continue to the big news of the day:
- Traditional vaccines use a disabled version of a pathogen to trigger an immune response that will teach the body to recognize the pathogen ready for when the full version shows up
- mRNA vaccines use a custom-made bit of genetic information to tell the body to make its own harmless fake pathogen and then respond to the harmless fake pathogen it made.
Note: this happens independently of the host’s DNA, so no, it does not change your DNA
See also: The Truth About Vaccines
Here’s a more detailed explainer (with a helpful diagram) using the COVID mRNA vaccine as an example:
Genome.gov | How does an mRNA vaccine work?
However, this still leaves us “chasing strains”, because as the pathogen (in this case, a virus) adapts, the vaccine has to be updated too, hence all the boosters.
This is a lot like a security update for your computer’s antivirus software. They’re annoying, but they do an important job.
No more “chasing strains”
The press conference soundbite on this sums it up well:
❝Scientists at UC Riverside have demonstrated a new, RNA-based vaccine strategy that is effective against any strain of a virus and can be used safely even by babies or the immunocompromised.❞
Read in full: Vaccine breakthrough means no more chasing strains
You may be wondering: what makes this one effective against any strain?
❝What I want to emphasize about this vaccine strategy is that it is broad.
It is broadly applicable to any number of viruses, broadly effective against any variant of a virus, and safe for a broad spectrum of people. This could be the universal vaccine that we have been looking for.
Viruses may mutate in regions not targeted by traditional vaccines. However, we are targeting their whole genome with thousands of small RNAs. They cannot escape this.❞
Importantly, this means it can be applied not just to one disease, let alone just one strain of COVID. Rather, it can be used for a wide variety of viruses that have similar viral functions—COVID / SARS in general, including influenza, and even viruses such as dengue.
How it does this: the above article explains in more detail, but in few words: it targets tiny strings of the genome that are present in all strains of the virus.
Illustrative example: if you wanted to block 10almonds (please don’t), you could block our email address.
But if we were malicious (we’re not) we could be sneaky and change it, so you’d have to block the new one, and the cycle repeats.
But if you were block all emails containing the tiny string of characters “10almonds”, changing our email address would no longer penetrate your defenses.
Now imagine also blocking strings such as “One-Minute Book Review” and “Today’s almonds have been activated by” and other strings we use in every email.
Now multiply this by thousands of strings (because genomes are much larger than our little newsletter), and you see its effectiveness!
Great! How can I get this?
It’s still in the testing stages for now; this is “breaking news” science, after all.
The study itself
…is paywalled for now, sadly, but if you happen to have institutional access, here it is:
Take care!
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How To Get More Nutrition From The Same Food
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How To Get More Out Of What’s On Your Plate
Where does digestion begin? It’s not the stomach. It’s not even the mouth.
It’s when we see and smell our food; maybe even hear it! “Sell the sizzle, not the steak” has a biological underpinning.
At that point, when we begin to salivate, that’s just one of many ways that our body is preparing itself for what we’re about to receive.
When we grab some ready-meal and wolf it down, we undercut that process. In the case of ready-meals, they often didn’t have much nutritional value, but even the most nutritious food isn’t going to do us nearly as much good if it barely touches the sides on the way down.
We’re not kidding about the importance of that initial stage of our external senses, by the way:
- Food perception primes hepatic endoplasmic reticulum homeostasis via melanocortin-dependent control of mTOR activation
- Olfaction regulates organismal proteostasis and longevity via microRNA-dependent signalling
So, mindful eating is not just something for Instagrammable “what I eat in a day” aesthetic photos, nor is just for monks atop cold mountains. There is actual science here, and a lot of it.
It starts with ingredients
“Eating the rainbow” (no, Skittles do not count) is great health advice for getting a wide variety of micronutrients, but it’s also simply beneficial for our senses, too. Which, as above-linked, makes a difference to digestion and nutrient absorption.
Enough is enough
That phrase always sounds like an expression of frustration, “Enough is enough!”. But, really:
Don’t overcomplicate your cooking, especially if you’re new to this approach. You can add in more complexities later, but for now, figure out what will be “enough”, and let it be enough.
The kitchen flow
Here we’re talking about flow in the Csikszentmihalyi sense of the word. Get “into the swing of things” and enjoy your time in the kitchen. Schedule more time than you need, and take it casually. Listen to your favourite music. Dance while you cook. Taste things as you go.
There are benefits, by the way, not just to our digestion (in being thusly primed and prepared for eating), but also to our cognition:
In The Zone: Flow State and Cognition in Older Adults
Serve
No, not just “put the food on the table”, but serve.
Have a pleasant environment; with sensory pleasures but without too many sensory distractions. Think less “the news on in the background” and more smooth jazz or Mozart or whatever works for you. Use your favourite (small!) plates/bowls, silverware, glasses. Have a candle if you like (unscented!).
Pay attention to presentation on the plate / in the bowl / in any “serve yourself” serving-things. Use a garnish (parsley is great if you want to add a touch of greenery without changing the flavor much). Crack that black pepper at the table. Make any condiments count (less “ketchup bottle” and more “elegant dip”).
Take your time
Say grace if that fits with your religious traditions, and/or take a moment to reflect on gratitude.
In many languages there’s a pre-dinner blessing that most often translates to “good appetite”. This writer is fond of the Norwegian “Velbekommen”, and it means more like “May good come of it for you”, or “May it do you good”.
Then, enjoy the food.
For the most even of blood sugar levels, consider eating fiber, protein/fat, carbs, in that order.
Why? See: 10 Ways To Balance Blood Sugars
Chew adequately and mindfully. Put your fork (or spoon, or chopsticks, or whatever) down between bites. Drink water alongside your meal.
Try to take at least 20 minutes to enjoy your meal, and/but any time you go to reach for another helping, take a moment to check in with yourself with regard to whether you are actually still hungry. If you’re not, and are just eating for pleasure, consider deferring that pleasure by saving the food for later.
At this point, people with partners/family may be thinking “But it won’t be there later! Someone else will eat it!”, and… That’s fine! Be happy for them. You can cook again tomorrow. You prepared delicious wholesome food that your partner/family enjoyed, and that’s always a good thing.
Want to know more about the science of mindful eating?
Check out Harvard’s Dr. Lilian Cheung on Mindful Eating here!
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