Fluoride Toothpaste vs Non-Fluoride Toothpaste – Which is Healthier?

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Our Verdict

When comparing fluoride toothpaste to non-fluoride toothpaste, we picked the fluoride.

Why?

Fluoride is indeed toxic; that’s why it’s in toothpaste (to kill things; namely, bacteria whose waste products would harm our teeth). However, we are much bigger than those bacteria.

Given the amount of fluoride in toothpaste (usually under 1mg per strip of toothpaste to cover a toothbrush head), the amount that people swallow unintentionally (about 1/20th of that, so about 0.1mg daily if brushing teeth twice daily), and the toxicity level of fluoride (32–64mg/kg), then even if we take the most dangerous ends of all those numbers (and an average body size), to suffer ill effects from fluoride due to brushing your teeth, would require that you brush your teeth more than 23,000 times per day.

Alternatively, if you were to ravenously eat the toothpaste instead of spitting it out, you’d only need to brush your teeth a little over 1,000 times per day.

All the same, please don’t eat toothpaste; that’s not the message here.

However! In head-to-head tests, fluoride toothpaste has almost always beaten non-fluoride toothpaste.

Almost? Yes, almost: hydroxyapatite performed equally in one study, but that’s not usually an option on as many supermarket shelves.

We found some on Amazon, though, which is the one we used for today’s head-to-head. Here it is:

Boka Fluoride-Free Toothpaste

However, before you rush to buy it, do be aware that the toxicity of hydroxyapatite appears to be about twice that of fluoride:

Scientific Committee on Consumer Safety Opinion On Hydroxyapatite (Nano)

…which is still very safe (you’d need to brush your teeth, and eat all the toothpaste, about 500 times per day, to get to toxic levels, if we run with the same numbers we discussed before. Again, please do not do that, though).

But, since the science so far suggests it’s about twice as toxic as fluoride, then regardless of that still being very safe, the fluoride is obviously (by the same metric) twice as safe, hence picking the fluoride.

Want more options?

Check out our previous main feature:

Less Common Oral Hygiene Options

(the above article also links back to our discussion of different toothpastes and mouthwashes, by the way)

Take care!

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  • When BMI Doesn’t Measure Up

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    When BMI Doesn’t Quite Measure Up

    Last month, we did a “Friday Mythbusters” edition of 10almonds, tackling many of the misconceptions surrounding obesity. Amongst them, we took a brief look at the usefulness (or lack thereof) of the Body Mass Index (BMI) scale of weight-related health for individuals. By popular subscriber request, we’re now going to dive a little deeper into that today!

    The wrong tool for the job

    BMI was developed as a tool to look at large-scale demographic trends, stemming from a population study of white European men, who were for the purpose of the study (the widescale health of the working class in that geographic area in that era), considered a reasonable default demographic.

    In other words: as a system, it’s now being used in a way it was never made for, and the results of that misappropriation of an epidemiological tool for individual health are predictably unhelpful.

    If you want to know yours…

    Here’s the magic formula for calculating your BMI:

    • Metric: divide your weight in kilograms by your height in square meters
    • Imperial: divide your weight in pounds by your height in square inches and then multiply by 703

    “What if my height doesn’t come in square meters or square inches, because it’s a height, not an area?”

    We know. Take your height and square it anyway. If this seems convoluted and arbitrary, yes, it is.

    But!

    While on the one hand it’s convoluted and arbitrary… On the other hand, it’s also a gross oversimplification. So, yay for the worst of both worlds?

    If you don’t want to grab a calculator, here’s a quick online tool to calculate it for you.

    So, how did you score?

    According to the CDC, a BMI score…

    • Under 18.5 is underweight
    • 18.5 to 24.9 is normal
    • 25 to 29.9 is overweight
    • 30 and over is obese

    And, if we’re looking at a representative sample of the population, where the representation is average white European men of working age, that’s not a bad general rule of thumb.

    For the rest of us, not so representative

    BMI is a great and accurate tool as a rule of thumb, except for…

    Women

    An easily forgotten demographic, due to being a mere 51% of the world’s population, women generally have a higher percentage of body fat than men, and this throws out BMI’s usefulness.

    If pregnant or nursing

    A much higher body weight and body fat percentage—note that these are two things, not one. Some of the extra weight will be fat to nourish the baby; some will be water weight, and if pregnant, some will be the baby (or babies!). BMI neither knows nor cares about any of these things. And, this is a big deal, because BMI gets used by healthcare providers to judge health risks and guide medical advice.

    People under the age of 16 or over the age of 65

    Not only do people below and above those ages (respectively) tend to be shorter—which throws out the calculations and mean health risks may increase before the BMI qualifies as overweight—but also:

    • BMI under 23 in people over the age of 65 is associated with a higher health risk
    • A meta-analysis showed that a BMI of 27 was the best in terms of decreased mortality risk for the over-65 age group

    This obviously flies in the face of conventional standards regards BMI—as you’ll recall from the BMI brackets we listed above.

    Read the science: BMI and all-cause mortality in older adults: a meta-analysis

    Athletic people

    A demographic often described in scientific literature as “athletes”, but that can be misleading. When we say “athletes”, what comes to mind? Probably Olympians, or other professional sportspeople.

    But also athletic, when it comes to body composition, are such people as fitness enthusiasts and manual laborers. Which makes for a lot more people affected by this!

    Athletic people tend to have more lean muscle mass (muscle weighs more than fat), and heavier bones (can’t build strong muscles on weak bones, so the bones get stronger too, which means denser)… But that lean muscle mass can actually increase metabolism and help ward off many of the very same things that BMI is used as a risk indicator for (e.g. heart disease, and diabetes). So people in this category will actually be at lower risk, while (by BMI) getting told they are at higher risk.

    If not white

    Physical characteristics of race can vary by more than skin color, relevant considerations in this case include, for example:

    • Black people, on average, not only have more lean muscle mass and less fat than white people, but also, have completely different risk factors for diseases such as diabetes.
    • Asian people, on average, are shorter than white people, and as such may see increased health risks before BMI qualifies as overweight.
    • Hispanic people, on average, again have different physical characteristics that throw out the results, in a manner that would need lower cutoffs to be even as “useful” as it is for white people.

    Further reading on this: BMI and the BIPOC Community

    In summary:

    If you’re an average white European working-age man, BMI can sometimes be a useful general guide. If however you fall into one or more of the above categories, it is likely to be inaccurate at best, if not outright telling the opposite of the truth.

    What’s more useful, then?

    For heart disease risk and diabetes risk both, waist circumference is a much more universally reliable indicator. And since those two things tend to affect a lot of other health risks, it becomes an excellent starting point for being aware of many aspects of health.

    Pregnancy will still throw off waist circumference a little (measure below the bump, not around it!), but it will nevertheless be more helpful than BMI even then, as it becomes necessary to just increase the numbers a little, according to gestational month and any confounding factors e.g. twins, triplets, etc. Ask your obstetrician about this, as it’s beyond the scope of today’s newsletter!

    As to what’s considered a risk:
    • Waist circumference of more than 35 inches for women
    • Waist circumference of more than 40 inches for men

    These numbers are considered applicable across demographics of age, sex, ethnicity, and lifestyle.

    Source: Waist circumference as a vital sign in clinical practice: a Consensus Statement from the IAS and ICCR Working Group on Visceral Obesity

    There are more options than just waist circumference though; we delve into them in detail here:

    Better Than BMI

    Take care!

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  • Resveratrol & Healthy Aging

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Resveratrol & Healthy Aging

    Resveratrol is the compound found in red grapes, and thus in red wine, that have resulted in red wine being sometimes touted as a heart-healthy drink.

    However, at the levels contained in red wine, you’d need to drink 100–1000 glasses of wine per day (depending on the wine) to get the dose of resveratrol that was associated with heart health benefits in mouse studies.

    Which also means: if you are not a mouse, you might need to drink even more than that!

    Further reading: can we drink to good health?

    Resveratrol supplementation

    Happily, resveratrol supplements exist. But what does resveratrol do?

    It lowers blood pressure:

    Effect of resveratrol on blood pressure: a meta-analysis of randomized controlled trials

    It improves blood lipid levels:

    Consumption of resveratrol decreases oxidized LDL and ApoB in patients undergoing primary prevention of cardiovascular disease: a triple-blind, 6-month follow-up, placebo-controlled, randomized trial

    It improves insulin sensitivity:

    Resveratrol retards progression of diabetic nephropathy through modulations of oxidative stress, proinflammatory cytokines, and AMP-activated protein kinase

    It has neuroprotective effects too:

    Resveratrol promotes clearance of Alzheimer’s disease amyloid-beta peptides

    Is it safe?

    For most people, it is generally recognized as safe. However, if you are on blood-thinners or otherwise have a bleeding disorder, you might want to skip it:

    Antiplatelet activity of synthetic and natural resveratrol in red wine

    You also might want to check with your pharmacist/doctor, if you’re on blood pressure meds, anxiety meds, or immunosuppressants, as it can increase the amount of these drugs that will then stay in your system:

    Resveratrol modulates drug- and carcinogen-metabolizing enzymes in a healthy volunteer study

    And as ever, of course, if unsure just check with your pharmacist/doctor, to be on the safe side.

    Where to get it?

    We don’t sell it, but here’s an example product on Amazon for your convenience

    Enjoy!

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  • Quit Drinking – by Rebecca Dolton

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Many “quit drinking” books focus on tips you’ve heard already—cut down like this, rearrange your habits like that, make yourself accountable like so, add a reward element this way, etc.

    Dolton takes a different approach.

    She focuses instead on the underlying processes of addiction, so as to not merely understand them to fight them, but also to use them against the addiction itself.

    This is not just a social or behavioral analysis, by the way, and goes into some detail into the physiological factors of the addiction—including such things as the little-talked about relationship between addiction and gut flora. Candida albans, found in most if not all humans to some extent, gets really out of control when given certain kinds of sugars (including those from alcohol); it grows, eventually puts roots through the intestinal walls (ouch!) and the more it grows, the more it demands the sugars it craves, so the more you feed it.

    Quite a motivator to not listen to such cravings! It’s not even you that wants it, it’s the Candida!

    Anyway, that’s just one example; there are many. The point here is that this is a well-researched, well-written book that sets itself apart from many of its genre.

    Check Out Quit Drinking On Amazon Today!

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  • When “Normal” Health Is Not What You Want

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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

    ❝When going to sleep, I try to breathe through my nose (since everyone says that’s best). But when I wake I often find that I am breathing through my mouth. Is that normal, or should I have my nose checked out?❞

    It is quite normal, but when it comes to health, “normal” does not always mean “optimal”.

    • Good news: it is correctable!
    • Bad news: it is correctable by what may be considered rather an extreme practice that comes with its own inconveniences and health risks.

    Some people correct this by using medical tape to keep their mouth closed at night, ensuring nose-breathing. Advocates of this say that after using it for a while, nose-breathing in sleep will become automatic.

    We know of no hard science to confirm this, and cannot even offer a personal anecdote on this one. Here are some pop-sci articles that do link to the (very few) studies that have been conducted:

    This writer’s personal approach is simply to do breathing exercises when going to sleep and first thing upon awakening, and settle for imperfection in this regard while asleep.

    Meanwhile, take care!

    Don’t Forget…

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    Learn to Age Gracefully

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  • Latest Alzheimer’s Prevention Research Updates

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    Questions and Answers 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!

    This newsletter has been growing a lot lately, and so have the questions/requests, and we love that! 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

    I am now in the “aging” population. A great concern for me is Alzheimers. My father had it and I am so worried. What is the latest research on prevention?

    One good thing to note is that while Alzheimer’s has a genetic component, it doesn’t appear to be hereditary per se. Still, good to be on top of these things, and it’s never too early to start with preventive measures!

    You might like a main feature we did on this recently:

    See: How To Reduce Your Alzheimer’s Risk

    Don’t Forget…

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    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Vision for Life, Revised Edition – by Dr. Meir Schneider

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    The “ten steps” would be better called “ten exercises”, as they’re ten things that one can (and should) continue to do on an ongoing basis, rather than steps to progress through and then forget about.

    We can’t claim to have tested the ten exercises for improvement (this reviewer has excellent eyesight and merely hopes to maintain such as she gets older) but the rationale is compelling, and the public testimonials abundant.

    Dr. Schneider also talks about improving and correcting errors of refraction—in other words, doing the job of any corrective lenses you may currently be using. While he doesn’t claim miracles, it turns out there is a lot that can be done for common issues such as near-sightedness and far-sightedness, amongst others.

    There’s a large section on managing more chronic pathological eye conditions than this reviewer previously knew existed; in some cases it’s a matter of making sure things don’t get worse, but in many others, there’s a recurring of theme of “and here’s an exercise for correcting that”.

    The writing style is a little more “narrative prose” than we’d have liked, but the quality of the content more than makes up for any style preference issues.

    Bottom line: the human body is a highly adaptive organism, and sometimes it just needs a little help to correct itself. This book can help with that.

    Click here to check out Vision for Life, and take good care of yours!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: