Sweet Potato vs Cassava – Which is Healthier?
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Our Verdict
When comparing sweet potato to cassava, we picked the sweet potato.
Why?
For any unfamiliar with cassava, it’s also called manioc or yuca/yucca, and it’s a tuber that can be used a lot like sweet potato. It’s popular in S. America, often in recipes that aren’t the healthiest (deep-fried chunky “cassava chips” are popular in Brazil, for example, and farofa, a flour made from cassava, is less healthy even than refined white flour from wheat), but today we’re going to judge it on its own merit—since after all, almost anything can be deep-fried and many things can be turned into flour, but it doesn’t mean we have to do that.
Let’s talk macros first: sweet potato has nearly 2x the protein, while cassava has nearly 2x the carbs. As for fiber to soften those carbs’ impact on our blood sugars, well, sweet potato has about 2x the fiber. All in all for macros, a clear and easy win for sweet potato.
Important note: as for the impact that has on glycemic index: the exact glycemic index will depend on what you do with it (different cooking methods change the GI), but broadly speaking, sweet potatoes are considered a medium GI food, while cassava is a very high GI food, to the point that it’s higher than sucrose, and nearly equal to pure glucose. Which is impressive, for a tuber.
In terms of vitamins, sweet potato’s famously high vitamin A content raises the bar, but it’s not all it has to offer: sweet potato has more of vitamins A, B1, B2, B3, B5, B6, E, and K, while cassava has more of vitamins B9 and choline. Just for amusement’s sake, let’s note that the sweet potato has over 1,478x the vitamin A content. In any case, the vitamins category is another clear win for sweet potato.
When it comes to minerals, it’s again quite one-sided: sweet potato has more calcium, copper, iron, magnesium, manganese, phosphorus, and potassium, while cassava has more selenium. So, sweet potato wins yet again.
In short: definitely a case of “the less widely-available option is not necessarily the healthier”!
Want to learn more?
You might like to read:
Glycemic Index vs Glycemic Load vs Insulin Index
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Lemon Balm For Stressful Times And More
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Balm For The Mind: In More Ways Than One!
Lemon balm(Melissa officinalis) is quite unrelated to lemons, and is actually a closer relative to mint. It does have a lemony fragrance, though!
You’ll find it in a lot of relaxing/sleepy preparations, so…
What does the science say?
Relaxation
Lemon balm has indeed been found to be a potent anti-stress herb. Laboratories that need to test anything to do with stress generally create that stress in one of two main ways:
- If it’s not humans: a forced swimming test that’s a lot like waterboarding
- If it is humans: cognitive tests completed under time-pressure while multitasking
Consequently, studies that have set out to examine lemon balm’s anti-stress potential in humans, have often ended up also highlighting its potential as a cognitive enhancer, like this one in which…
❝Both active lemon balm treatments were generally associated with improvements in mood and/or cognitive performance❞
~ Dr. Anastasia Ossoukhova et al.
Read in full: Anti-Stress Effects of Lemon Balm-Containing Foods
And this one, which found…
❝The results showed that the 600-mg dose of Melissa ameliorated the negative mood effects of the DISS, with significantly increased self-ratings of calmness and reduced self-ratings of alertness.
In addition, a significant increase in the speed of mathematical processing, with no reduction in accuracy, was observed after ingestion of the 300-mg dose.❞
The appropriately named “DISS” is the Defined Intensity Stress Simulation we talked about.
Sleep
There’s a lot less research for lemon balm’s properties in this regard than for stress/anxiety, and it’s probably because sleep studies are much more expensive than stress studies.
It’s not for a lack of popular academic interest—for example, typing “Melissa officinalis” into PubMed (the vast library of studies we often cite from) autosuggests “Melissa officinalis sleep”. But alas, autosuggestions do not Randomized Controlled Trials make.
There are some, but they’re often small, old, and combined with other things, like this one:
This is interesting, because generally speaking there is little to no evidence that valerian actually helps sleep, so if this mixture worked, we might reasonably assume it was because of the lemon balm—but there’s an outside chance it could be that it only works in the presence of valerian (unlikely, but in science we must consider all possibilities).
Beyond that, we just have meta-reviews to work from, like this one that noted:
❝M. officinalis contains several phytochemicals such as phenolic acids, flavonoids, terpenoids, and many others at the basis of its pharmacological activities. Indeed, the plant can have antioxidant, anti-inflammatory, antispasmodic, antimicrobial, neuroprotective, nephroprotective, antinociceptive effects.
Given its consolidated use, M. officinalis has also been experimented with clinical settings, demonstrating interesting properties against different human diseases, such as anxiety, sleeping difficulties, palpitation, hypertension, depression, dementia, infantile colic, bruxism, metabolic problems, Alzheimer’s disease, and sexual disorders. ❞
You see why we don’t try to cover everything here, by the way!
But if you want to read this one in full, you can, at:
An Updated Review on The Properties of Melissa officinalis L.: Not Exclusively Anti-anxiety
Is it safe?
Lemon balm is generally recognized as safe, and/but please check with your doctor/pharmacist in case of any contraindications due to medicines you may be on or conditions you may have.
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon
Want to know your other options?
You might like our previous main features:
What Teas To Drink Before Bed (By Science!)
and
Safe Effective Sleep Aids For Seniors
Enjoy!
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Too Much Or Too Little Testosterone?
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One Man’s Saw Palmetto Is Another Woman’s Serenoa Repens…
Today we’re going to look at saw palmetto. So, first:
What is it?
Saw palmetto is a type of palm native to the southeastern United States. Its scientific name is “Serenoa repens”, so if that name appears in studies we cite, it’s the same thing. By whichever name, it’s widely enjoyed as a herbal supplement.
Why do people take it?
Here’s where it gets interesting, because people take it for some completely opposite reasons…
Indeed, searching for it on the Internet will cause Google to suggest “…for men” and “…for women” as the top suggestions.
That’s because it works on testosterone, and testosterone can be a bit of a double-edged sword, so some people want to increase or decrease certain testosterone-related effects on their body.
And it works for both! Here be science:
- Testosterone (henceforth, “T”) is produced in the human body.
- Yes, all human bodies, to some extent.
- An enzyme called 5-alpha-reductase converts T in to DHT (dihydrogen testosterone)
- DHT is a much more potent androgen (masculinizing agent) than T alone, such that its effects are often unwanted, including:
- Enlarged prostate (if you have one)
- Hair loss (especially in men)
- New facial hair growth (usually unwanted by women)
- Women are more likely to get this due to PCOS and/or the menopause
To avoid those effects, you really want less of your T to be converted into DHT.
Saw palmetto is a 5α-reductase inhibitor, so if you take it, you’ll have less DHT, and you’ll consequently lose less hair, have fewer prostate problems, etc.
^The above study showed that saw palmetto extract performed comparably to finasteride. Finasteride is the world’s main go-to prescription drug for treating enlarged prostate and/or hair loss.
See also: Natural Hair Supplement: Friend or Foe? Saw Palmetto, a Systematic Review in Alopecia
Hair today… Growing tomorrow!
So, what was that about increasing T levels?
Men usually suffer declining T levels as they get older, with a marked drop around the age of 45. With lower T comes lower energy, lower mood, lower libido, erectile dysfunction, etc.
Guess what… It’s T that’s needed for those things, not DHT. So if you block the conversion of T to DHT, you’ll have higher blood serum T levels, higher energy, higher mood, higher libido, and all that.
(the above assumes you have testicles, without which, your T levels will certainly not increase)
Saw Palmetto Against Enlarged Prostate?
With higher DHT levels in mid-late life, prostate enlargement (benign prostatic hyperlasia) can become a problem for many men. The size of that problem ranges from urinary inconvenience (common, when the prostate presses against the bladder) to prostate cancer (less common, much more serious). Saw palmetto, like other 5α-reductase inhibitors such as finasteride, may be used to prevent or treat this.
Wondering how safe/reliable it is? We found a very high-quality fifteen-year longitudinal observational study of the use of saw palmetto, and it found:
❝The 15 years’ study results suggest that taking S. repens plant extract continuously at a daily dose of 320 mg is an effective and safe way to prevent the progression of benign prostatic hyperplasia.❞
Want a second opinion? We also found a 10-year study (by different researchers with different people taking it), which reached the same conclusion:
❝The results of study showed the absence of progression, both on subjective criteria (IPSS, and QoL scores), and objective criteria (prostate volume, the rate of urination, residual urine volume). Furthermore, patients had no undesirable effects directly related to the use of this drug.❞
- IPSS = International Prostate Symptom Score
- QoL = Quality of Life
❝But wait a minute; I, a man over the age of 45 with potentially declining T levels but a fabulous beard, remember that you said just a minute ago that saw palmetto is used by women to avoid having facial hair; I don’t want to lose mine!❞
You won’t. Once your facial hair follicles were fully developed and activated during puberty, they’ll carry on doing what they do for life. That’s no longer regulated by hormones once they’re up and running.
The use of saw palmetto can only be used to limit facial hair if caught early—so it’s more useful at the onset of menopause, for those who have (or will have) such, or else upon the arrival of PCOS symptoms or hirsuitism from some other cause.
Take The Test!
Do you have a prostate, and would like to know your IPSS score, and what that means for your prostate health?
(takes 1 minute, no need to pee or go probing for anything)
Bottom Line on Saw Palmetto
- It blocks the conversion of T into DHT
- It will increase blood serum T levels, thus boosting mood, energy, libido, etc in men (who typically have more T, but whose T levels decline with age)
- It will decrease DHT levels, thus limiting hair loss (especially in men) and later-life new facial hair growth (especially in women).
- It can be used to prevent or treat prostate enlargement
- Bonus: it’s a potent antioxidant and thus reduces general inflammation (in everyone)
Want To Try Saw Palmetto?
We don’t sell it (or anything else), but for your convenience…
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- Testosterone (henceforth, “T”) is produced in the human body.
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Revive and Maintain Metabolism
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
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
❝How to jump start a inactive metabolism and keep it going? THANKYOU❞
The good news is, if you’re alive, your metabolism is active (it never stops!). So, it may just need perking up a little.
As for keeping it going, well, that’s what we’re here for! We’re all in favor of healthy longevity.
We’ll do a main feature soon on what we can do to influence our metabolism in either direction, but to give some quick notes here:
- A lot of our metabolism is influenced by genes and is unalterable (without modifying our genes, anyway)
- Metabolism isn’t just one thing—it’s many. And sometimes, parts of our metabolism can be much quicker or slower than others.
- When people talk about wanting a “faster metabolism”, they’re usually referring to fat-burning, and that’s just a small part of the picture, but we understand that it’s a focal point for many.
There really is enough material for a whole main feature on metabolic tweaks, though, so watch this space!
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Clams vs Oysters – Which is Healthier?
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Our Verdict
When comparing clams to oysters, we picked the clams.
Why?
Considering the macros first, clams have more than 2x the protein, while oysters have nearly 2x the fat, of which, a little over 5x the saturated fat. So, in all accounts, clam is the winner here.
In terms of vitamins, clams have more of vitamins A, B1, B2, B3, B5, B6, B7, B9, B12, and C, while oysters are not higher in any vitamins. Another win for clams.
The category of minerals is more balanced; clams are higher in manganese, phosphorus, potassium, and selenium, while oysters are higher in copper, iron, magnesium, and zinc. This makes for a 4:4 tie, though it’s worth noting that the margin of difference for zinc is very large, so that can be an argument for oysters.
Nevertheless, adding up the sections makes for a clear win for clams.
A quick aside on “are oysters an aphrodisiac?”:
That zinc content is probably largely responsible for oysters’ reputation as an aphrodisiac, and zinc is important in the synthesis of both estrogen and testosterone. However, as the synthesis is not instant, and those sex hormones rise most in the morning (around 8am to 9am), to enjoy aphrodisiac benefits it’d be more sensible, on a biochemical level, to eat oysters one day, and then have morning sex the next day when those hormones are peaking. That said, while testosterone is the main driver of male libido, progesterone is usually more relevant for women’s, and unlike estrogen, progesterone usually peaks around 10pm to 2am, and is uninfluenced by having just eaten oysters.
So, in what way, if any, could oysters be responsible for libido in women? Well, the zinc is still important in energy metabolism, so that’s a factor, and also, we might hypothesize that oysters’ high saturated fat and cholesterol content may increase blood pressure which, while not fabulous for the health in general, may be considered desirable in the bedroom since the clitoris is anatomically analogous to the penis, and—while estrogen vs testosterone makes differences to the nervous system down there that are beyond the scope of today’s article—also enjoys localized increased blood pressure (and thus, a flushing response and resultant engorgement) during arousal.
Want to learn more?
You might like to read:
Does Eating Shellfish Really Contribute To Gout? ← short answer is: it can if consumed frequently over a long period of time, but that risk factor is greatly overstated, compared to some other risk factors
Take care!
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Is It Possible To Lose Weight Quickly?
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In Victorian England, weight-loss trends like the dangerous tapeworm diet were popular. While modern fad diets can seem less extreme, they often promise similarly fast results. However, these quick fixes can have similarly harmful consequences:
Not so fast
To illustrate the difference between gradual and extreme dieting, the video bids us consider two identical twins, Sam and Felix:
- Sam adopts a gradual approach, slowly reducing calorie intake and exercising regularly. This causes his body to burn glycogen stores before transitioning to fat as an energy source. Regular exercise helps Sam maintain muscle mass, which boosts his metabolism and supports sustained weight loss.
- Felix drastically cuts calories, forcing his body into starvation mode. He quickly depletes glycogen stores, loses muscle mass, and burns fewer calories, making long-term weight loss more difficult. Although Felix might initially lose water weight, this is temporary and unsustainable.
You cannot “just lose it quickly now, and then worry about healthiness once the weight’s gone”, because you will lose health much more quickly than you will lose fat, and that will sabotage, rather than help, your fat loss journey.Healthy weight loss requires gradual, balanced changes in diet and exercise tailored to individual needs. Extreme diets, whether through calorie restriction or things like elimination of carbs or fats, are unsustainable and shock the body. It’s important to prioritize long-term health over societal pressures for quick weight loss and focus on developing a sustainable, healthy lifestyle.
In short, the quickest way to lose weight and keep it off (without dying), is to lose it slowly.
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:
How To Lose Weight (Healthily)
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What’s Lurking In Your Household Air?
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As individuals, we can’t do much about the outside air. We can try to spend more time in green spaces* and away from traffic, and we can wear face-masks—as was popular in Tokyo and other such large cities long before the pandemic struck.
*The well-known mental health benefits aside (and contrary to British politician Amber Rudd’s famous assertion in a televised political debate that “clean air doesn’t grow on trees”), clean air comes mostly from trees—their natural process of respiration scrubs not only carbon dioxide, but also pollutants, from the air before releasing oxygen without the pollutants. Neat!
See also this study: Site new care homes near trees and away from busy roads to protect residents’ lungs
We are fortunate to be living in a world where most of us in industrialized countries can exercise a great degree of control over our home’s climate. But, what to do with all that power?
Temperature
Let’s start with the basics. Outside temperature may vary, but you probably have heating and air conditioning. There’s a simple answer here; the optimal temperature for human comfort and wellbeing is 20℃ / 68℉:
Scientists Identify a Universal Optimal Temperature For Life on Earth
Note: this does not mean that that is the ideal global average temperature, because that would mean the polar caps are completely gone, the methane stored there released, many large cities underwater, currently hot places will be too hot for human life (e.g. outside temperatures above human body temperature), there will be mass extinctions of many kinds of animals and plants, including those we humans require for survival, and a great proliferation of many bugs that will kill us. Basically we need diversity for the planet to survive, arctic through to tropical and yes, even deserts (deserts are important carbon sinks!). The ideal global average temperature is about 14℃ (we currently have about 15℃ and rising).
But, for setting the thermostat in your home, 20℃ / 68℉ is perfect for most people, though down as far as 17℃ / 61℉ is fine too, provided other things such as humidity are in order. In fact, for sleeping, 18℃ / 62℉ is ideal. This is because the cooler temperature is one of the several things that tell our brain it is nighttime now, and thus trigger secretion of melatonin.
If you’re wondering about temperatures and respiratory viruses, by the way, check out:
The Cold Truth About Respiratory Infections: The Pathogens That Came In From The Cold
Humidity
Most people pay more attention to the temperature in their home than the humidity, and the latter is just as important:
❝Conditions that fall outside of the optimal range of 40–60% can have significant impacts on health, including facilitating infectious transmission and exacerbating respiratory diseases.
When humidity is too low, it can cause dryness and irritation of the respiratory tract and skin, making individuals more susceptible to infections.
When humidity is too high, it can create a damp environment that encourages the growth of harmful microorganisms like mould, bacteria, and viruses.❞
~ Dr. Gabriella Guarnieri et al.
So, if your average indoor humidity falls outside of that range, consider getting a humidifier or dehumidifier, to correct it. Example items on Amazon, for your convenience:
Humidity monitor | Humidifier | Dehumidifier
See also, about a seriously underestimated killer:
Pneumonia: Prevention Is Better Than Cure
Now, one last component to deal with, for perfect indoor air:
Pollution
We tend to think of pollution as an outdoors thing, and indeed, the pollution in your home will (hopefully!) be lower than that of a busy traffic intersection. However…
- The air you have inside comes from outside, and that matters if you’re in an urban area
- Even in suburban and rural areas, general atmospheric pollutants will reach you, and if you’ve ever been subject to wildfire smoke, you’ll know that’s no fun either.
- Gas appliances in the home cause indoor pollution, even when carbon monoxide is within levels considered acceptable. This polluting effect is much stronger for open gas flames (such as on gas cookers/stoves, or gas fires), than for closed gas heating systems (such as a gas-powered boiler for central heating).
- Wood stoves/fireplaces are not an improvement, in fact they are worse, and don’t get us started on coal. You should not be breathing these things, and definitely should not be burning them in an enclosed space.
- That air conditioning, humidifier, dehumidifier? They may be great for temperature and humidity, but please clean/change the filter more often than you think is necessary, or things will grow there and then your device will be adding pathogens to the air as it goes.
- Plug-in air-freshening devices? They may smell clean, but they are effectively spraying cleaning fluids into your lungs. So please don’t.
So, what of air purifiers? They can definitely be of benefit. for example:
But watch out! Because if you don’t clean/change the filter regularly, guess what happens! That’s right, it’ll be colonized with bacteria/fungus and then be blowing those at you.
And no, not all of them will be visible to the naked eye:
Is Unnoticed Environmental Mold Harming Your Health?
Taking a holistic approach
The air is a very important factor for the health of your lungs (and thus, for the health of everything that’s fed oxygen by your lungs), but there are more things we can do as well:
Seven Things To Do For Good Lung Health!
Take care!
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Learn to Age Gracefully
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