Breakfasting For Health?
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Breakfast Time!
In yesterday’s newsletter, we asked you for your health-related opinions on the timings of meals.
But what does the science say?
Quick recap on intermittent fasting first:
Today’s article will rely somewhat on at least a basic knowledge of intermittent fasting, what it is, and how and why it works.
Armed with that knowledge, we can look at when it is good to break the fast (i.e. breakfast) and when it is good to begin the fast (i.e. eat the last meal of the day).
So, if you’d like a quick refresher on intermittent fasting, here it is:
Intermittent Fasting: We Sort The Science From The Hype
And now, onwards!
One should eat breakfast first thing: True or False?
True! Give or take one’s definition of “first thing”. We did a main feature about this previously, and you can read a lot about the science of it, and see links to studies:
The Circadian Rhythm: Far More Than Most People Know
In case you don’t have time to read that now, we’ll summarize the most relevant-to-today’s-article conclusion:
The optimal time to breakfast is around 10am (this is based on getting sunlight around 8:30am, so adjust if this is different for you)
It doesn’t matter when we eat; calories are calories & nutrients are nutrients: True or False?
Broadly False, for practical purposes. Because, indeed calories are calories and nutrients are nutrients at any hour, but the body will do different things with them depending on where we are in the circadian cycle.
For example, this study in the Journal of Nutrition found…
❝Our results suggest that in relatively healthy adults, eating less frequently, no snacking, consuming breakfast, and eating the largest meal in the morning may be effective methods for preventing long-term weight gain.
Eating breakfast and lunch 5-6 h apart and making the overnight fast last 18-19 h may be a useful practical strategy.❞
Read in full: Meal Frequency and Timing Are Associated with Changes in Body Mass Index
We should avoid eating too late at night: True or False?
False per se, True in the context of the above. Allow us to clarify:
There is nothing inherently bad about eating late at night; there is no “bonus calorie happy hour” before bed.
However…
If we are eating late at night, that makes it difficult to breakfast in the morning (as is ideal) and still maintain a >16hr fasting window as is optimal, per:
❝the effects of the main forms of fasting, activating the metabolic switch from glucose to fat and ketones (G-to-K), starting 12-16 h after cessation or strong reduction of food intake❞
~ Dr. Françoise Wilhelmi de Toledo et al.
So in other words: since the benefits of intermittent fasting start at 12 hours into the fast, you’re not going to get them if you’re breakfasting at 10am and also eating in the evening.
Summary:
- It is best to eat breakfast around 10am, generally (ideally after some sunlight and exercise)
- While there’s nothing wrong with eating in the evening per se, doing so means that a 10am breakfast will eliminate any fasting benefits you might otherwise get
- If a “one meal a day, and that meal is breakfast” lifestyle doesn’t suit you, then one possible good compromise is to have a large breakfast, and then a smaller meal in the late afternoon / early evening.
One last tip: the above is good, science-based information. Use it (or don’t), as you see fit. We’re not the boss of you:
- Maybe you care most about getting the best circadian rhythm benefits, in which case, prioritizing breakfast being a) in the morning and b) the largest meal of the day, is key
- Maybe you care most about getting the best intermittent fasting benefits, in which case, for many people’s lifestyle, a fine option is skipping eating in the morning, and having one meal in the late afternoon / early evening.
Take care!
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Science of Yoga – by Ann Swanson
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There are a lot of yoga books out there to say “bend this way, hold this that way” and so forth, but few that really explain what is going on, how, and why. And understanding those things is of course key to motivation and adherence. So that’s what this book provides!
The book is divided into sections, and in the first part we have a tour of human anatomy and physiology. This may seem almost unrelated to yoga, but is valuable necessary-knowledge to get the most out of the next section:
The next few parts are given over to yoga asanas (stretches, positions, poses, call them what you will in English) and now we are given a clear idea of what it is doing: we get to understand exactly what’s being stretched, what blood flow is being increased and how, what organs are being settled into their correct place, and many other such things.
Importantly, this means we also understand why certain things are the way they are, and why they can’t be done in some other slightly different but perhaps superficially easier way.
The style of the book is like a school textbook, really, but without patronizing the reader. The illustrations, of which there are many, are simple enough to be clear while being detailed enough to be informative.
Bottom line: if you’re ever doing yoga at home and wondering if you should cut a certain corner, this is the book that will tell you why you shouldn’t.
Click here to check out Science of Yoga, and optimize your practice!
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How To Improve Your Heart Rate Variability
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How’s your heart rate variability?
The hallmarks of a good, strong cardiovascular system include a medium-to-low resting heart rate (for adults: under 60 beats per minute is good; under 50 is typical of athletes), and healthy blood pressure (for adults: under 120/80, while still above 90/60, is generally considered good).
Less talked-about is heart rate variability, but it’s important too…
What is heart rate variability?
Heart rate variability is a measure of how quickly and easily your heart responds to changes in demands placed upon it. For example:
- If you’re at rest and then start running your fastest (be it for leisure or survival or anything in between), your heart rate should be able to jump from its resting rate to about 180% of that as quickly as possible
- When you stop, your heart rate should be able to shift gears back to your resting rate as quickly as possible
The same goes, to a commensurately lesser extent, to changes in activity between low and moderate, or between moderate and high.
- When your heart can change gears quickly, that’s called a high heart rate variability
- When your heart is sluggish to get going and then takes a while to return to normal after exertion, that’s called a low heart rate variability.
The rate of change (i.e., the variability) is measured in microseconds per beat, and the actual numbers will vary depending on a lot of factors, but for everyone, higher is better than lower.
Aside from quick response to crises, why does it matter?
If heart rate variability is low, it means the sympathetic nervous system is dominating the parasympathetic nervous system, which means, in lay terms, your fight-or-flight response is overriding your ability to relax.
See for example: Stress and Heart Rate Variability: A Meta-Analysis and Review of the Literature
This has a lot of knock-on effects for both physical and mental health! Your heart and brain will take the worst of this damage, so it’s good to improve things for them impossible.
This Saturday’s Life Hacks: how to improve your HRV!
Firstly, the Usual Five Things™:
- A good diet (that avoids processed foods)
- Good exercise (that includes daily physical activity—more often is more important than more intense!)
- Good sleep (7–9 hours of good quality sleep per night)
- Reduce or eliminate alcohol consumption (this is dose-dependent; any reduction is an improvement)
- Don’t smoke (just don’t)
Additional regular habits that help a lot:
- Breathing exercises, mindfulness, meditation
- Therapy, especially CBT and DBT
- Stress-avoidance strategies, for example:
- Get (and maintain) your finances in good order
- Get (and maintain) your relationship(s) in good order
- Get (and maintain) your working* life in good order
*Whatever this means to you. If you’re perhaps retired, or otherwise a home-maker, or even a student, the things you “need to do” on a daily basis are your working life, for these purposes.
In terms of simple, quick-fix, physical tweaks to focus on if you’re already broadly leading a good life, two great ones are:
- Exercise: get moving! Walk to the store even if you buy nothing but a snack or drink to enjoy while walking back. If you drove, make more trips with the shopping bags rather than fewer. If you like to watch TV, consider an exercise bike or treadmill to use while watching. If you have a partner, double-up and make it a thing you do together! Take the stairs instead of the elevator. Take the scenic route when walking someplace. Go to the bathroom that’s further away. Every little helps!
- Breathe: even just a couple of times a day, practice mindful breathing. Start with even just a minute a day, to get the habit going. What breathing exercise you do isn’t so important as that you do it. Notice your breathing; count how long each breath takes. Don’t worry about “doing it right”—you’re doing great, just observe, just notice, just slowly count. We promise that regular practice of this will have you feeling amazing
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10 Ways To Balance Blood Sugars
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“Let Them Eat Cake”, She Said…
This is Jessie Inchauspé, a French biochemist and author. She’s most known for her best-selling “Glucose Revolution: The Life-Changing Power Of Balancing Your Blood Sugar”.
It’s a great book (which we reviewed recently) and you absolutely should read it, but meanwhile, we’re going to distill at least the most critical core ideas, 10almonds style. In this case, her “ten hacks”:
Eat foods in the right order
The order is:
- Fiber first
- Protein and fat second
- Starches and sugars last
What happens here is… the fiber perks up the gut bacteria, the protein and fat will then be better-digested next, and the starches and sugars will try to jump the line, but they can’t because the fiber is a physical speedbump and the proteins and fats are taking the prime place for being digested. So instead, the starches and sugars—usually responsible for blood sugar spikes—get processed much more gradually, resulting in a nice even curve.
Add a green starter to all your meals
We know what you’re thinking: “that’s just the first one again”, but no. This is an extra starter, before you get to that. If you’re the cook of the household, this can absolutely simply mean snacking on green ingredients while cooking.
Stop counting calories
Especially, she advises: stop worrying about extra calories from fats, such as if doing an oil-and-vinegar dressing for salad—which she also recommends, because all three components (the oil, the vinegar, and the salad) help even out blood sugar levels.
Flatten your breakfast curve
For many, breakfast is the starchiest meal of the day, if not the sugariest. Inchauspé recommends flipping this (ideally) or softening it (if you really must have a carb-based breakfast):
- Top choices include: a warm vegetable salad, fish, or eggs (or tofu if you don’t do animal products).
- Next-best include: if you must have toast, make sure to have butter (and/or the aforementioned egg/tofu, for example) to give your digestion an extra thing to do.
- Also: she recommends skipping the juice in favour of home-made breakfast smoothies. That way, instead of basically just sugar with some vitamins, you’re getting a range of nutrients that, if you stack it right, can constitute a balanced meal itself, with fiber + protein + fat + carbs.
Have any type of sugar—they’re all the same
They’re technically not, but the point is that your body will immediately take them apart and then they will be just the same. Whether it’s the cheapest white sugar or the most expensive organic lovingly hand-reared free-range agave nectar, your body is going to immediately give it the chop-shop treatment (a process so quick as to be practically instantaneous) and say “this is now glucose”.
Pick a dessert over a sweet snack
Remember that about the right order for foods? A dessert, when your body is already digesting dinner, is going to make much less of a glucose spike than, say, a blueberry muffin when all you’ve had this morning is coffee and juice.
Reach for the vinegar before you eat
We recently did a whole main feature about this, so we’ll not double up today!
After you eat, move
The glucose you eat will be used to replace lost muscle glycogen, before any left over is stored as fat… and, while it’s waiting to be stored as fat, just sitting in your bloodstream being high blood sugars. So, this whole thing will go a lot better if you are actively using muscle glycogen (by moving your body).
Inchauspé gives a metaphor: imagine a steam train worker, shoveling coal into the furnace. Meanwhile, other workers are bringing more coal. If the train is moving quickly, the coal can be shoveled into the furnace and burned and won’t build up so quickly. But if the train is moving slowly or not at all, that coal is just going to build up and build up, until the worker can shovel no more because of being neck-deep in coal.
Same with your blood sugars!
If you want to snack, go low-sugar
In the category of advice that will shock nobody: sugary snacks aren’t good for avoiding blood sugar spikes! This one probably didn’t need a chapter devoted to it, but anyway: low sugar is indeed the way to go for snacks.
Put some clothes on your carbs
This is about olive oil on pasta, butter on potatoes, and so forth. Basically, anything starchy is going to be broken down quickly to sugar and sent straight into the bloodstream, if there’s nothing to slow it down. If you’re wondering what to do with rice: adding a tablespoon of chia seeds to the rice while cooking (so they’re cooked together) will add very healthy fats to your rice, and (because they’ve been cooked) will not seem like eating seeds, by the way. In terms of texture and appearance, it’ll be as though you threw some black pepper in*
*which you should also do for many reasons, but that’s beyond the scope of this “about blood sugars” feature!
Wanting to know more about the science of this?
We’ve done all we have room for here today, but Inchauspé is, as ever, happy to explain it herself:
Prefer text? Check out:
The Science Behind Glucose GoddessShare This Post
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Celery vs Lettuce – Which is Healthier?
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Our Verdict
When comparing celery to lettuce, we picked the lettuce.
Why?
Let us consider the macros first: lettuce has 2x the protein, but of course the numbers are tiny and probably nobody is eating this for the protein. Both of these salad items are roughly comparable in terms of carbs and fiber, being both mostly water with just enough other stuff to hold their shape. Nominally this section is a slight win for lettuce on account of the protein, but in realistic practical terms, it’s a tie.
In terms of vitamins, celery has more of vitamins B5 and E, while lettuce has more of vitamins A, B1, B2, B3, B6, B7, B9, C, K, and choline. An easy win for lettuce here.
In the category of minerals, celery has more calcium, copper, and potassium, while lettuce has more iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc. So, a fair win for lettuce.
Adding up the sections makes for an overall win for lettuce; of course, enjoy both, though!
Want to learn more?
You might like to read:
Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
Take care!
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Get Rid Of Female Facial Hair Easily
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Dr. Sam Ellis, dermatologist, explains:
Hair today; gone tomorrow
While a little peach fuzz is pretty ubiquitous, coarser hairs are less common in women especially earlier in life. However, even before menopause, such hair can be caused by main things, ranging from PCOS to genetics and more. In most cases, the underlying issue is excess androgen production, for one reason or another (i.e. there are many possible reasons, beyond the scope of this article).
Options for dealing with this include…
- Topical, such as eflornithine (e.g. Vaniqa) thins terminal hairs (those are the coarse kind); a course of 6–8 weeks continued use is needed.
- Hormonal, such as estrogen (opposes testosterone and suppresses it), progesterone (downregulates 5α-reductase, which means less serum testosterone is converted to the more powerful dihydrogen testosterone (DHT) form), and spironolactone or other testosterone-blockers; not hormones themselves, but they do what it says on the tin (block testosterone).
- Non-medical, such as electrolysis, laser, and IPL. Electrolysis works on all hair colors but takes longer; laser needs to be darker hair against paler skin* (because it works by superheating the pigment of the hair while not doing the same to the skin) but takes more treatments, and IPL is a less-effective more-convenient at-home option, that works on the same principles as laser (and so has the same color-based requirements), and simply takes even longer than laser.
*so for example:
- Black hair on white skin? Yes
- Red hair on white skin? Potentially; it depends on the level of pigmentation. But it’s probably not the best option.
- Gray/blonde hair on white skin? No
- Black hair on mid-tone skin? Yes, but a slower pace may be needed for safety
- Anything else on mid-tone skin? No
- Anything on dark skin? No
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:
Too Much Or Too Little Testosterone?
Take care!
Don’t Forget…
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Are Electrolyte Supplements Worth It?
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When To Take Electrolytes (And When We Shouldn’t!)
Any sports nutrition outlet will sell electrolyte supplements. Sometimes in the form of sports drinks that claim to be more hydrating than water, or tablets that can be dissolved in water to make the same. How do they work, and should we be drinking them?
What are electrolytes?
They’re called “electrolytes” because they are ionized particles (so, they have a positive or negative electrical charge, depending on which kind of ion they are) that are usually combined in the form of salts.
The “first halves” of the salts include:
- Sodium
- Potassium
- Calcium
- Magnesium
The “second halves” of the salts include:
- Chloride
- Phosphate
- Bicarbonate
- Nitrate
It doesn’t matter too much which way they’re combined, provided we get what we need. Specifically, the body needs them in a careful balance. Too much or too little, and bad things will start happening to us.
If we live in a temperate climate with a moderate lifestyle and a balanced diet, and have healthy working kidneys, usually our kidneys will keep them all in balance.
Why might we need to supplement?
Firstly, of course, you might have a dietary deficiency. Magnesium deficiency in particular is very common in North America, as people simply do not eat as much greenery as they ideally would.
But, also, you might sweat out your electrolytes, in which case, you will need to replace them.
In particular, endurance training and High Intensity Interval Training are likely to prompt this.
However… Are you in a rush? Because if not, you might just want to recover more slowly:
❝Vigorous exercise and warm/hot temperatures induce sweat production, which loses both water and electrolytes. Both water and sodium need to be replaced to re-establish “normal” total body water (euhydration).
This replacement can be by normal eating and drinking practices if there is no urgency for recovery.
But if rapid recovery (<24 h) is desired or severe hypohydration (>5% body mass) is encountered, aggressive drinking of fluids and consuming electrolytes should be encouraged to facilitate recovery❞
Source: Fluid and electrolyte needs for training, competition, and recovery
Should we just supplement anyway, as a “catch-all” to be sure?
Probably not. In particular, it is easy to get too much sodium in one’s diet, let alone by supplementation.And, oversupplementation of calcium is very common, and causes its own health problems. See:
To look directly to the science on this one, we see a general consensus amongst research reviews: “this is complicated and can go either way depending on what else people are doing”:
- Trace minerals intake: risks and benefits for cardiovascular health
- Electrolyte minerals intake and cardiovascular health
Well, that’s not helpful. Any clearer pointers?
Yes! Researchers Latzka and Mountain put together a very practical list of tips. Rather, they didn’t put it as a list, but the following bullet points are information extracted directly from their abstract, though we’ve also linked the full article below:
- It is recommended that individuals begin exercise when adequately hydrated.
- This can be facilitated by drinking 400 mL to 600 mL of fluid 2 hours before beginning exercise and drinking sufficient fluid during exercise to prevent dehydration from exceeding 2% body weight.
- A practical recommendation is to drink small amounts of fluid (150-300 mL) every 15 to 20 minutes of exercise, varying the volume depending on sweating rate.
- During exercise lasting less than 90 minutes, water alone is sufficient for fluid replacement
- During prolonged exercise lasting longer than 90 minutes, commercially available carbohydrate electrolyte beverages should be considered to provide an exogenous carbohydrate source to sustain carbohydrate oxidation and endurance performance.
- Electrolyte supplementation is generally not necessary because dietary intake is adequate to offset electrolytes lost in sweat and urine; however, during initial days of hot-weather training or when meals are not calorically adequate, supplemental salt intake may be indicated to sustain sodium balance.
Source: Water and electrolyte requirements for exercise
Bonus tip:
We’ve talked before about the specific age-related benefits of creatine supplementation, but if you’re doing endurance training or HIIT, you might also want to consider a creatine-electrolyte combination sports drink (even if you make it yourself):
Where can I get electrolyte supplements?
They’re easy to find in any sports nutrition store, or you can buy them online; here’s an example product on Amazon for your convenience
You can also opt for natural and/or homemade electrolyte drinks:
Healthline | 8 Healthy Drinks Rich in Electrolytes
Enjoy!
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