Spinach vs Kale – Which is Healthier?
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Our Verdict
When comparing spinach to kale, we picked the spinach.
Why?
In terms of macros, spinach and kale are very similar. They are mostly water wrapped in fiber, with very small amounts of carbohydrates and protein and trace amounts of fat.
Spinach has a lot more vitamins and minerals—a wider variety, and in most cases, more of them.
Kale is notably higher in vitamin C, though. Everything else, spinach is higher or close to equal.
Spinach is especially notably a lot higher in B vitamins, as well as iron, calcium, magnesium, and zinc.
One downside to spinach, though, which is that it’s high in oxalates, which can increase the risk of kidney stones. If your kidneys are in good health and you eat spinach in moderation, this is not a problem for most people—but if your kidneys aren’t in good health (or you are, for whatever reason, consuming Popeye levels of spinach), you might consider switching to kale.
While spinach swept the board in most categories, kale remains a very good option too, and a diet diverse in many kinds of plants is usually best.
Want to learn more?
Spinach and kale are very both good sources of carotenoids; check out:
Enjoy!
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How to Vary Breakfast for Digestion?
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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
❝Would appreciate your thoughts on how best to promote good digestion. For years, my breakfast has consisted of flaxseeds, sunflower seeds, and almonds – all well ground up – eaten with a generous amount of kefir. This works a treat as far as my digestion is concerned. But I sometimes wonder whether it would be better for my health if I varied or supplemented this breakfast. How might I do this without jeopardising my good digestion?❞
Sounds like you’re already doing great! Those ingredients are all very nutrient-dense, and grinding them up improves digestion greatly, to the point that you’re getting nutrients your body couldn’t get at otherwise. And the kefir, of course, is a top-tier probiotic.
Also, you’re getting plenty of protein and healthy fats in with your carbs, which results in the smoothest blood sugar curve.
As for variety…
Variety is good in diet, but variety within a theme. Our gut microbiota change according to what we eat, so sudden changes in diet are often met with heavy resistance from our gut.
- For example, people who take up a 100% plant-based diet overnight often spend the next day in the bathroom, and wonder what happened.
- Conversely, a long-time vegan who (whether by accident or design) consumes meat or dairy will likely find themself quickly feeling very unwell, because their gut microbiota have no idea what to do with this.
So, variety yes, but within a theme, and make any changes gradual for the easiest transition.
All in all, the only obvious suggestion for improvement is to consider adding some berries. These can be fresh, dried, or frozen, and will confer many health benefits (most notably a lot of antioxidant activity).
Enjoy!
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GABA Against Stress/Anxiety
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A Neurotransmitter Less Talked-About
GABA is taken by many people as a supplement, mostly as a mood modifier, though its health claims go beyond the recreational—and also, we’re of the opinion that mental health is also just health, and if it works, it works. We’ll explore some of the claims and science behind them today…
What is GABA?
GABA stands for gamma-aminobutyric acid, and it’s a neurotransmitter. It’s a lot less talked-about than for example dopamine or serotonin, but it’s very important nonetheless.
We make it ourselves inside our body, and we can also get it from our food, or supplement it, and some drugs will also have an effect on its presence and/or activity in our body.
What foods is it found in?
- Animals, obviously (just like in human brains*)
- Fermented foods (many kinds)
- Yeast
- Tea
- Tomatoes
- Mulberries
For more details, see:
γ-Aminobutyric acid found in fermented foods and beverages: current trends
*However, we do not recommend eating human brains, due to the risk of CJD and prion diseases in general.
What claims are made about it and are they true?
For brevity, we’ll give a little spoiler up-front: all the popular claims for it appear to be valid, though there’s definitely room for a lot more human trials (we skipped over a lot of rodent studies today!).
So we’ll just drop some of its main benefits, and human studies to back those.
Reduction of stress and anxiety
GABA decreases task-related stress and anxiety within 30 minutes of being taken, both in subjective measures (i.e., self-reports) and in objective clinical physiological measures:
Cognitive enhancement
It’s not a does-everything nootropic like some, but it does have clear benefits to episodic memory:
❝GABA intake might help to distribute limited attentional resources more efficiently, and can specifically improve the identification and ordering of visual events that occur in close temporal succession❞
One of the things that makes this one important is that it also deals with the often-asked question of “does GABA pass the blood-brain barrier”:
❝The present findings do give further credence to the idea that oral ingestion does allow GABA to reach the brain and exert direct effects on cognition, which in the present case were specific to temporal attention.❞
Read more:
Supplementation of gamma-aminobutyric acid (GABA) affects temporal, but not spatial visual attention
Potential for more
We take care to give good quality sources, so the following study comes with a big caveat that it has since been retracted. Why was it retracted, you wonder?
It’s about the sample; they cite “30 healthy adults”, but neglected tp mention that this figure was initially 46. What happened to the other 16 participants is unclear, but given that this was challenged and the challenge not answered, it was sufficient for the journal (Nature) to pull the study, in case of deliberate sample bias.
However! Running the numbers in their results section, a probability of 0.03 is very compelling unless the disappearance of 16 subjects was outright fraudulent (which we regrettably cannot know either way).
Here’s the study (so take it with a pinch of salt, considering the above), and taken at face value, it shows how GABA supplementation improves accurate reactions to fast-moving visual and auditory stimuli:
RETRACTED ARTICLE: γ-Aminobutyric acid (GABA) administration improves action selection processes: a randomised controlled trial
…so, hopefully this experiment will be repeated, without disappearing participants!
The sweet spot
You may be wondering how something that slows a person down (having a relaxing effect) can also speed a person up. This has to do with what it is and isn’t affecting; think of it like a “focus mode” on your computer or other device that greys-out everything else a bit so that you can focus on what you’re doing.
It’s in some ways (by different neurochemical pathways, though) a similar effect to the “relaxed alertness” created by l-theanine supplementation.
There’s also a sweet spot whereby GABA is toning some things down just the right amount, without adversely affecting performance in areas we don’t want slowed down. For the science of this, see:
Is it safe?
GABA is “Generally Recognized As Safe”. However:
- you should speak with your pharmacist if you are taking any medications for blood pressure or epilepsy, as GABA supplementation may cause them to work too well.
- you should absolutely not take GABA with alcohol or opioids as (dose-dependent for all the substances involved, and also depending on your metabolic base rate and other factors) its acute depression of the CNS can mean you relax and slow down too much, and you may find yourself not breathing often enough to sustain life.
Aside from that, it is considered safe up to at least 1g/kg/day*. Given that popular doses are 120–750mg, and most people weigh more than 750g, this is very safe for most people:
United States Pharmacopeia (USP) Safety Review of Gamma-Aminobutyric Acid (GABA)
Where can I get it?
We don’t sell it, but for your convenience, here’s an example product on Amazon
Enjoy!
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What Is Making The Ringing In Your Ears Worse?
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Dr. Rachael Cook, an audiologist at Applied Hearing Solutions in Phoenix, Arizona, shares her professional insights into managing tinnitus.
If you’re unfamiliar with Tinnitus, it is an auditory condition characterized by a ringing, buzzing, or humming sound, and ffects nearly 10% of the population. We’ve written on Tinnitus, and how it can disrupt your life, in this article.
Key Triggers for Tinnitus
Several everyday habits can make your tinnitus louder. Caffeine and nicotine increase blood pressure, restricting blood flow to the cochlea and worsening tinnitus. Common medications, such as pain relievers, high-dose antibiotics, and antidepressants, can also exacerbate tinnitus, especially with higher or long-term dosages.
Impact of Diet and Sleep
Dietary choices significantly impact tinnitus. Alcohol and salt alter the fluid balance in the cochlea, increasing tinnitus perception. Alcohol changes blood flow patterns and neurotransmitter production, while high salt intake has similar effects. Poor sleep quality elevates stress levels, making it harder to ignore tinnitus signals. Addressing sleep disorders like sleep apnea and insomnia can help manage tinnitus symptoms.
Importance of Treating Hearing Loss
Untreated hearing loss worsens tinnitus. Nearly 90% of individuals with tinnitus have some hearing loss. Hearing aids can reduce tinnitus perception by restoring missing sounds and reducing the brain’s internal compensatory signals. Combining hearing aids with sound therapy is said to provide even greater relief.
Read more about hearing loss in our article on the topic.
Otherwise, for a great guide on managing tinnitus, we recommend watching Dr. Cook’s video:
Here’s hoping your ear’s aren’t ringing too much whilst watching the video!
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11 Minutes to Pain-Free Hips – by Melinda Wright
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If hips don’t lie, what are yours saying to you? If what they’re saying to you sounds like a cry for help sometimes, this is the book to get you onto a better track.
The hip is the largest joint in your body, and it bears a lot of weight. So it’s little wonder if sometimes they’d like a word with the boss. The question is: what will you do about it? Melinda Wright has suggestions to keep your hips—and you—happy.
She spends the first couple of chapters introducing key concepts, and some anatomy and physiology that’ll be good to know.
Then we’re into resistance stretching, basic hip exercises, all the way through to more advanced stuff. There are very clear photos for each. One thing that stands out about this book is each exercise is not just explained simply and clearly, but also offers “easing oneself in” exercises. After all, we’re not all at the same starting point.
The book finishes off with some more holistic advice about chronic pain management, based on her personal experience with scoliosis, and some dietary tips to reduce joint pain and inflammation too.
All in all, a very helpful book!
Pick up 11 “Minutes to Pain-Free Hips” at Amazon today!
^You will also see options for pain-free back, and pain-free neck, by the same author
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Unlock Your Air-Fryer’s Potential!
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Unlock Your Air-Fryer’s Potential!
You know what they say:
“you get out of it what you put in”
…and in the case of an air-fryer, that’s very true!
More seriously:
A lot of people buy an air fryer for its health benefits and convenience, make fries a couple of times, and then mostly let it gather dust. But for those who want to unlock its potential, there’s plenty more it can do!
Let’s go over the basics first…
Isn’t it just a tiny convection oven?
Mechanically, yes. But the reason that it can be used to “air-fry” food rather than merely bake or roast the food is because of its tiny size allowing for much more rapid cooking at high temperatures.
On which note… If you’re shopping for an air-fryer:
- First of all, congratulations! You’re going to love it.
- Secondly: bigger is not better. If you go over more than about 4 liters capacity, then you don’t have an air-fryer; you have a convection oven. Which is great and all, but probably not what you wanted.
Are there health benefits beyond using less oil?
It also creates much less acrylamide than deep-frying starchy foods does. The jury is out on the health risks of acrylamide, but we can say with confidence: it’s not exactly a health food.
I tried it, but the food doesn’t cook or just burns!
The usual reason for this is either over-packing the fryer compartment (air needs to be able to circulate!), or not coating the contents in oil. The oil only needs to be a super-thin layer, but it does need to be there, or else again, you’re just baking things.
Two ways to get a super thin layer of oil on your food:
- (works for anything you can air-fry) spray the food with oil. You can buy spray-on oils at the grocery store (Fry-light and similar brands are great), or put oil in little spray bottle (of the kind that you might buy for haircare) yourself.
- (works with anything that can be shaken vigorously without harming it, e.g. root vegetables) chop the food, and put it in a tub (or a pan with a lid) with about a tablespoon of olive oil. Don’t worry if that looks like it’s not nearly enough—it will be! Now’s a great time to add your seasonings* too, by the way. Put the lid on, and holding the lid firmly in place, shake the tub/pan/whatever vigorously. Open it, and you’ll find the oil has now distributed itself into a very thin layer all over the food.
*About those seasonings…
Obviously not everything will go with everything, but some very healthful seasonings to consider adding are:
- Garlic minced/granules/powder (great for the heart and immune health)
- Black pepper (boosts absorption of other nutrients, and provides more benefits of its own than we can list here)
- Turmeric (slows aging and has anti-cancer properties)
- Cinnamon (great for the heart and has anti-inflammatory properties)
Garlic and black pepper can go with almost anything (and in this writer’s house, they usually do!)
Turmeric has a sweet nutty taste, and will add its color anything it touches. So if you want beautiful golden fries, perfect! If you don’t want yellow eggplant, maybe skip it.
Cinnamon is, of course, great as part of breakfast and dessert dishes
On which note, things most people don’t think of air-frying:
- Breakfast frittata—the healthy way!
- Omelets—no more accidental scrambled egg and you don’t have to babysit it! Just take out the tray that things normally sit on, and build it directly onto the (spray-oiled) bottom of the air-fryer pan. If you’re worried it’ll burn: a) it won’t, because the heat is coming from above, not below b) you can always use greaseproof paper or even a small heatproof plate
- French toast—again with no cooking skills required
- Fish cakes—make the patties as normal, spray-oil and lightly bread them
- Cauliflower bites—spray oil or do the pan-jiggle we described; for seasonings, we recommend adding smoked paprika and, if you like heat, your preferred kind of hot pepper! These are delicious, and an amazing healthy snack that feels like junk food.
- Falafel—make the balls as usual, spray-oil (do not jiggle violently; they won’t have the structural integrity for that) and air-fry!
- Calamari (vegan option: onion rings!)—cut the squid (or onions) into rings, and lightly coat in batter and refrigerate for about an hour before air-frying at the highest heat your fryer does. This is critical, because air-fryers don’t like wet things, and if you don’t refrigerate it and then use a high heat, the batter will just drip, and you don’t want that. But with those two tips, it’ll work just great.
Want more ideas?
Check out EatingWell’s 65+ Healthy Air-Fryer Recipes ← the recipes are right there, no need to fight one’s way to them in any fashion!
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Yoga Nidra Made Easy – by Dr. Uma Dinsmore-Tuli and Nirlipta Tuli
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We’ve reviewed books about yoga before, and about sleep. This one’s different.
It’s about a yogic practice that can be used to promote restful sleep—or just be a non-sleeping exercise that nonetheless promotes relaxation and recuperation.
While yoga nidra is as somatic as it is psychological, its corporeal aspects are all explored in a lying-down-on-one’s-back state. This isn’t a book of stretches and poses and such—those are great, but are simply not needed for this practice.
The authors explain, step-by-step, simply and clearly, how to practice yoga nidra, and get out of it what you want to (there are an assortment of possible outcomes, per your preference; there are options to choose along the way).
A lot of books about yoga, even when written in English, contain a lot of Sanskrit terms. This one doesn’t. And, that difference goes a long way to living up to the title of making this easy, for those of us who regrettably don’t read even transliterated Sanskrit.
Bottom line: if ever you struggle to relax, struggle to sleep, or struggle to find your get-up-and-go, this book provides all you need to engage in this very restorative practice!
Click here to check out Yoga Nidra Made Easy, and learn this restorative tool for yourself!
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