Three Critical Kitchen Prescriptions
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Three Critical Kitchen Prescriptions
This is Dr. Saliha Mahmood-Ahmed. She’s a medical doctor—specifically, a gastroenterologist. She’s also a chef, and winner of the BBC’s MasterChef competition. So, from her gastroenterology day-job and her culinary calling, she has some expert insights to share on eating well!
❝Food and medicine are inextricably linked to one another, and it is an honour to be a doctor who specialises in digestive health and can both cook, and teach others to cook❞
~ Dr. Saliha Mahmood-Ahmed, after winning MasterChef and being asked if she’d quit medicine to be a full-time chef
Dr. Mahmood-Ahmed’s 3 “Kitchen Prescriptions”
They are:
- Cook, cook, cook
- Feed your gut bugs
- Do not diet
Let’s take a look at each of those…
Cook, cook, cook
We’re the only species on Earth that cooks food. An easy knee-jerk response might be to think maybe we shouldn’t, then, but… We’ve been doing it for at least 30,000 years, which is about 1,500 generations, while a mere 100 generations is generally sufficient for small evolutionary changes. So, we’ve evolved this way now.
More importantly in this context: we, ourselves, should cook our own food, at least per household.
Not ready meals; we haven’t evolved for those (yet! Give it another few hundred generations maybe)
Feed your gut bugs
The friendly ones. Enjoy prebiotics, probiotics, and plenty of fiber—and then be mindful of what else you do or don’t eat. Feeding the friendly bacteria while starving the unfriendly ones may seem like a tricky task, but it actually can be quite easily understood and implemented. We did a main feature about this a few weeks ago:
Making Friends With Your Gut (You Can Thank Us Later)
Do not diet
Dr. Mahmood-Ahmed is a strong critic of calorie-counting as a weight-loss strategy:
Rather than focusing on the number of calories consumed, try focusing on introducing enough variety of food into your daily diet, and on fostering good microbial diversity within your gut.
It’s a conceptual shift from restrictive weight loss, to prescriptive adding of things to one’s diet, with fostering diversity of microbiota as a top priority.
This, too, she recommends be undertaken gently, though—making small, piecemeal, but sustainable improvements. Nobody can reasonably incorporate, say, 30 new fruits and vegetables into one’s diet in a week; it’s unrealistic, and more importantly, it’s unsustainable.
Instead, consider just adding one new fruit or vegetable per shopping trip!
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Top 10 Early Warning Signs Of Dementia
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What’s a harmless momentary mind-blank, and what’s a potential warning sign of dementia? Dementia Careblazers, a dementia care organization, has input:
The signs
With the caveat that this is a list of potential warning signs, not a diagnostic tool, the 10 signs are:
- Memory loss: e.g. forgetting important or well-learned information, such as one’s home address
- Challenges in planning or solving problems: e.g. difficulty with tasks such as paying bills (for organizational rather than financial reasons), following recipes, or managing medications
- Difficulty completing familiar tasks: e.g. trouble remembering rules of a familiar game, or directions to a familiar place
- Confusion with place or time: e.g. forgetting where one is, or making mistakes with the date, season, or other time-related details. Note that anyone can be momentarily unsure of today’s date, but if someone thinks it’s 1995, probably something wrong is not quite right. Similarly, being wrong about who is the current national leader is often used as a test, too—assuming countries with enough political stability to not have five different national leaders in the past four years, including one who did not outlast a lettuce *side-eyeing the UK*
- Trouble understanding visual images and spatial relationships: e.g. increased clumsiness, difficulty parking, or bumping into objects
- New problems with speaking or writing: e.g. losing track in conversations, or struggling to find the right words
- Misplacing things: e.g. losing items and being unable to retrace one’s steps to find them
- Decreased or poor judgment: e.g. falling for scams, giving out too much information or money without investigating appropriately first
- Withdrawal from social activities or hobbies: e.g. losing interest in activities one used to enjoy or avoiding social interactions
- Changes in mood and personality: e.g. increased irritability, anxiety, or other noticeable changes in behavior and personality
For more information on each of these, enjoy:
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Want to learn more?
You might also like to read:
Dementia: Spot The Signs (Because None Of Us Are Immune)
Take care!
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Dandelion: Time For Evidence On Its Benefits?
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In recent decades often considered a weed, now enjoying a resurgence in popularity due its benefits for pollinators, this plant has longer-ago been enjoyed as salad (leaves) or as a drink (roots), and is typically considered to have diuretic and digestion-improving properties. So… Does it?
Diuretic
Probably! Because of the ubiquity of anecdotal evidence, this hasn’t been well-studied, but here’s a small (n=17) study that found that it significantly increased urination:
The diuretic effect in human subjects of an extract of Taraxacum officinale folium over a single day
You may be thinking, “you usually do better than an n=17 study” and yes we do, but there’s an amazing paucity of human research when it comes to dandelions, as you’ll see:
Digestion-improving
There’s a lot of fiber in dandelion greens and roots both, and eating unprocessed or minimally-processed plants is (with obvious exceptions, such as plants that are poisonous) invariably going to improve digestion just by virtue of the fiber content alone.
As for dandelions, the roots are rich in inulin, a great prebiotic fiber that indeed definitely helps:
Effect of inulin in the treatment of irritable bowel syndrome with constipation (Review)
When it comes to studies that are specifically about dandelions, however, we are down to animal studies, such as:
The effect of Taraxacum officinale on gastric emptying and smooth muscle motility in rodents
Note that this is not about the fiber; this is about the plant extract (so, no fiber), and how it gets the intestinal muscles to do their thing with more enthusiasm. Of course you, dear reader, are probably not a rodent, we can’t say for sure that this will have this effect in humans. However, generally speaking, what works for mammals works for mammals, so it probably indeed helps.
For liver health
More about rats and not humans, but again, it’s promising. Dandelion extract appears to protect the liver, reducing the damage in the event of induced liver failure:
In other words: the researchers poisoned the rats, and those who took dandelion extract suffered less liver damage than those who didn’t.
…and more?
It may help improve blood triglycerides and reduce ischemic stroke risk, but most of this research is still in non-human animals:
And while we’re on the topic of blood, it likely has blood-sugar-lowering effects too; once again (you guessed it), mostly non-human animal studies, though, with some in vitro studies:
The Physiological Effects of Dandelion (Taraxacum Officinale) in Type 2 Diabetes
Want to try some?
We don’t sell it, but if you have a garden, that’s a great place to grow this very easy-to-grow plant without having to worry about pesticides etc.
Alternatively, if you’d like to buy it in supplement form, here’s an example product on Amazon 😎
Enjoy!
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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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Dandelion Greens vs Collard Greens – Which is Healthier?
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Our Verdict
When comparing dandelion greens to collard greens, we picked the dandelion greens.
Why?
Collard greens are great—they even beat kale in one of our previous “This or That” articles!—but dandelion greens simply pack more of a nutritional punch:
In terms of macros, dandelions have slightly more carbs (+3g/100g) for the same protein and fiber, and/but the glycemic index is equal (zero), so those carbs aren’t anything to worry about. Nobody is getting metabolic disease by getting their carbs from dandelion leaves. In short, we’re calling it a tie on macros, though it could nominally swing either way if you have an opinion (one way or the other) about the extra 3g of carbs.
In the category of vitamins, things are more exciting: dandelion greens have more of vitamins A, B1, B2, B3, B6, B7, B9, C, E, and K, while collard greens have more vitamin B5. An easy and clear win for dandelions.
Looking at the minerals tells a similar story; dandelion greens have much more calcium, copper, iron, magnesium, phosphorus, potassium, and zinc, while collard greens have slightly more manganese. Another overwhelming win for dandelions.
One more category, polyphenols. We’d be here until next week if we listed all the polyphenols that dandelion greens have, but suffice it to say, dandelion greens have a total of 385.55mg/100g polyphenols, while collard greens have a total of 0.08mg/100g polyphenols. Grabbing a calculator, we see that this means dandelions have more than 4819x the polyphenol content that collard greens do.
So, “eat leafy greens” is great advice, but they are definitely not all created equal!
Let us take this moment to exhort: if you have any space at home where you can grow dandelions, grow them!
Not only are they great for pollinators, but also they beat the collard greens that beat kale. And you can have as much as you want, for free, right there.
Want to learn more?
You might like to read:
Collard Greens vs Kale – Which is Healthier?
Enjoy!
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Antihistamines’ Generation Gap
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Are You Ready For Allergy Season?
For those of us in the Northern Hemisphere, fall will be upon us soon, and we have a few weeks to be ready for it. A common seasonal ailment is of course seasonal allergies—it’s not serious for most of us, but it can be very annoying, and can disrupt a lot of our normal activities.
Suddenly, a thing that notionally does us no real harm, is making driving dangerous, cooking take three times as long, sex laughable if not off-the-table (so to speak), and the lightest tasks exhausting.
So, what to do about it?
Antihistamines: first generation
Ye olde antihistamines such as diphenhydramine and chlorpheniramine are probably not what to do about it.
They are small molecules that cross the blood-brain barrier and affect histamine receptors in the central nervous system. This will generally get the job done, but there’s a fair bit of neurological friendly-fire going on, and while they will produce drowsiness, the sleep will usually be of poor quality. They also tax the liver rather.
If you are using them and not experiencing unwanted side effects, then don’t let us stop you, but do be aware of the risks.
See also: Long-term use of diphenhydramine ← this is the active ingredient in Benadryl in the US and Canada, but safety regulations in many other countries mean that Benadryl has different, safer active ingredients elsewhere.
Antihistamines: later generations
We’re going to aggregate 2nd gen, 3rd gen, and 4th gen antihistamines here, because otherwise we’ll be writing a history article and we don’t have room for that. But suffice it to say, later generations of antihistamines do not come with the same problems.
Instead of going in all-guns-blazing to the CNS like first-gens, they are more specific in their receptor-targetting, resulting in negligible collateral damage:
Special shout-out to cetirizine and loratadine, which are the drugs behind half the brand names you’ll see on pharmacy shelves around most of the world these days (including many in the US and Canada).
Note that these two are very often discussed in the same sentence, sit next to each other on the shelf, and often have identical price and near-identical packaging. Their effectiveness (usually: moderate) and side effects (usually: low) are similar and comparable, but they are genuinely different drugs that just happen to do more or less the same thing.
This is relevant because if one of them isn’t working for you (and/or is creating an unwanted side effect), you might want to try the other one.
Another honorable mention goes to fexofenadine, for which pretty much all the same as the above goes, though it gets talked about less (and when it does get mentioned, it’s usually by its most popular brand name, Allegra).
Finally, one that’s a little different and also deserving of a special mention is azelastine. It was recently (ish, 2021) moved from being prescription-only to being non-prescription (OTC), and it’s a nasal spray.
It can cause drowsiness, but it’s considered safe and effective for most people. Its main benefit is not really the difference in drug, so much as the difference in the route of administration (nasal rather than oral). Because the drug is in liquid spray form, it can be absorbed through the mucus lining of the nose and get straight to work on blocking the symptoms—in contrast, oral antihistamines usually have to go into your stomach and take their chances there (we say “usually”, because there are some sublingual antihistamines that dissolve under the tongue, but they are less common.)
Better than antihistamines?
Writer’s note: at this point, I was given to wonder: “wait, what was I squirting up my nose last time anyway?”—because, dear readers, at the time I got it I just bought one of every different drug on the shelf, desperate to find something that worked. What worked for me, like magic, when nothing else had, was beclometasone dipropionate, which a) smelled delightfully of flowers, which might just be the brand I got, b) needs replacing now because I got it in March 2023 and it expired July 2024, and c) is not an antihistamine at all.
But, that brings us to the final chapter for today: systemic corticosteroids
They’re not ok for everyone (check with your doctor if unsure), and definitely should not be taken if immunocompromised and/or currently suffering from an infection (including colds, flu, COVID, etc) unless your doctor tells you otherwise (and even then, honestly, double-check).
But! They can work like magic when other things don’t. Unlike antihistamines, which only block the symptoms, systemic corticosteroids tackle the underlying inflammation, which can stop the whole thing in its tracks.
Here’s how they measure up against antihistamines:
❝The results of this systematic review, together with data on safety and cost effectiveness, support the use of intranasal corticosteroids over oral antihistamines as first line treatment for allergic rhinitis.❞
~ Dr. Robert Puy et al.
Take care!
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Six Ways To Eat For Healthier Skin
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Sadia Badiei, the nutritionist-chef of “Pick Up Limes” fame, has advice:
More than skin-deep:
We’ll not keep them a mystery; here are the six points of focus:
1. Collagen and skin elasticity
Collagen is the structural protein that provides firmness and elasticity to the skin, but its production decreases with age, resulting in about a 1% annual loss starting at age 20. To support collagen, a diet rich in protein is essential, including foods like beans, lentils, tofu, tempeh, nuts, and seeds. They can’t do their work alone though; vitamins C and E play a critical role in collagen production and repair, protecting against damage from sun exposure, pollution, and free radicals. Vitamin E can be found in almonds, sunflower seeds, leafy greens, peanuts, and avocados, while vitamin C is abundant in citrus fruits, bell peppers, and broccoli.
2. Skin healing and zinc
Zinc is critical for wound healing and reducing inflammation, making it particularly helpful in managing skin conditions such as acne, eczema, psoriasis, and rosacea. Great dietary sources of zinc include nutritional yeast, pumpkin, sesame, and hemp seeds, as well as legumes and whole grains. However, zinc absorption can be hindered by phytate levels in some foods. Soaking, sprouting, or fermenting foods where possible can correct for that and improve zinc absorption.
3. Dry skin and hydration
Dry skin can result from many things, including dry air, hot water, abrasive soaps, and certain medications. While moisturizers provide external hydration, dietary omega-3 fats are essential for improving the skin’s barrier function, helping it retain moisture. Plant-based sources of omega-3s include walnuts, hemp seeds, chia seeds, flax seeds, and algae-based supplements. Staying adequately hydrated also supports overall health of course (everything runs on water in one way or another, after all), which indirectly benefits skin hydration, although drinking additional water only helps if dehydration is present.
4. Sebum regulation
Sebum, an oily substance that lubricates the skin, can cause issues like acne and blackheads when overproduced. Hormonal fluctuations and diet both influence sebum levels (in either direction). High glycemic index foods, such as sweetened beverages, refined grains, and sugary snacks, can lead to spikes in insulin, which in turn stimulates excess sebum production. In contrast, low glycemic index foods like vegetables, whole grains, tofu, nuts, and seeds regulate blood sugar and help manage sebum production, promoting clearer skin without an excess or a shortage of sebum.
5. Gut health and skin
The gut-skin connection means that imbalances in gut bacteria can contribute to skin issues like acne, eczema, and psoriasis. Supporting gut health involves increasing the diversity of beneficial bacteria through probiotic-rich foods. Fermented options like plant-based yogurts, kimchi, miso, sauerkraut, and kombucha not only improve gut microbiome health but also positively impact skin health by reducing inflammation and improving overall skin conditions.
6. Inflammation and skin health
Chronic inflammation is associated with so many health issues, and when it comes to skin, that includes acne, rosacea, and even wrinkles. Anti-inflammatory foods, especially those rich in antioxidants, can mitigate these effects and improve skin elasticity, smoothness, and color. Diets centered around fruits, vegetables, and other plant-based foods provide the necessary nutrients to combat inflammation, showcasing the significant role of nutrition in promoting radiant, healthy skin.
For more on each of these, enjoy:
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Want to learn more?
You might also like to read:
Undo The Sun’s Damage To Your Skin
Take care!
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