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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The Best Kind Of Fiber For Overall Health?
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The Fiber Of Good Health
We’ve written before about how most people in industrialized nations in general, and N. America in particular, do not get nearly enough fiber:
Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
Fiber’s important for many aspects of health, not least of all the heart:
What Matters Most For Your Heart? Eat More (Of This) For Lower Blood Pressure
As well, of course, as being critical for gut health:
Gut Health 101: Making Friends With Your Gut (You Can Thank Us Later)
But is all fiber “prebiotic fiber”, and/or are some better than others?
Beta-glucan
A recent study (it’s a mouse study, but promising in its applicability for humans) examined the health impacts of 5 different fiber types:
- pectin
- β-glucan
- wheat dextrin
- resistant starch
- cellulose (control)
As for health metrics, they measured:
- body weight
- adiposity
- indirect calorimetry
- glucose tolerance
- gut microbiota
- metabolites thereof
What they found was…
❝Only β-glucan supplementation during HFD-feeding decreased adiposity and body weight gain and improved glucose tolerance compared with HFD-cellulose, whereas all other fibers had no effect. This was associated with increased energy expenditure and locomotor activity in mice compared with HFD-cellulose.
All fibers supplemented into an HFD uniquely shifted the intestinal microbiota and cecal short-chain fatty acids; however, only β-glucan supplementation increased cecal butyrate concentrations. Lastly, all fibers altered the small-intestinal microbiota and portal bile acid composition. ❞
If you’d like to read more, the study itself is here:
If you’d like to read less, the short version is that they are all good but β-glucan scored best in several metrics.
It also acts indirectly as a GLP-1 agonist, by the way:
The right fiber may help you lose weight
You may be wondering: what is β-glucan found in?
It’s found in many (non-animal product) foods, but oats, barley, mushrooms, and yeasts are all good sources.
Is it available as a supplement?
More or less; there are supplements that contain it generously, here’s an example product on Amazon, a cordyceps extract, of which >30% is β-glucan.
As an aside, cordyceps itself has many other healthful properties too:
Cordyceps: Friend Or Foe? ← the answer is, it depends! If you’re human, it’s a friend.
Enjoy!
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Samosa Spiced Surprise
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You know what’s best about samosas? It’s not actually the fried pastry; that’s just what holds it together. If you were to try eating sheets of pastry alone, it would not be much fun. But, the spiced vegetable filling? Now we’re talking! So, this recipe takes what’s best about samosas, and makes them into healthy snack-sized patties.
You will need
- Extra virgin olive oil, or coconut oil (per your preference) for cooking
- 4 medium potatoes, boiled, peeled, and mashed
- 1 medium onion, diced
- 1 cup peas
- 1 carrot, finely chopped
- ½ cup garbanzo bean flour (chickpea flour, gram flour, whatever your supermarket calls it)
- ¼ cup fresh cilantro, chopped (substitute parsley if you have the soap gene)
- ¼ bulb garlic, minced
- 1 jalapeño pepper, chopped
- 1 tbsp ground cumin
- 2 tsp garam masala
- 1 tsp ground coriander
- 1 tsp ground turmeric
- 1 tsp ground black pepper
Method
(we suggest you read everything at least once before doing anything)
1) Fry the onion until it is becoming soft and translucent (3–5 minutes).
2) Add the spices (the garlic, both kinds of pepper, cumin, coriander, turmeric, and the garam masala), stirring in well
3) Add the carrot and peas, stirring and cooking until just becoming soft (probably another 3–5 minutes, depending on the heat, how small you chopped the carrot, and whether the peas were frozen or fresh). Take it off the heat.
4) Mix the potato, chickpea flour, and cilantro in a bowl, and carefully add everything from the pan, mixing that in thoroughly too.
5) Shape into patties, and fry them on each side until browned and crispy.
6) Serve as part of a buffet, or perhaps as an appetizer—raita is a fine accompaniment option.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
Take care!
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Breadfruit vs Custard Apple – Which is Healthier?
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Our Verdict
When comparing breadfruit to custard apple, we picked the breadfruit.
Why?
Today in “fruits pretending to be less healthy things than they are”, both are great, but one of these fruits just edges out the other in all categories. This is quite simple today:
In terms of macros, being fruits they’re both fairly high in carbs and fiber, however the carbs are close to equal and breadfruit has nearly 2x the fiber.
This also means that breadfruit has the lower glycemic index, but they’re both medium-low GI foods with a low insulin index.
When it comes to vitamins, breadfruit has more of vitamins B1, B3, B5, and C, while custard apple has more of vitamins A, B2, and B6. So, a 4:3 win for breadfruit.
In the category of minerals, breadfruit has more copper, magnesium, phosphorus, potassium, and zinc, while custard apple has more calcium and iron.
In short, enjoy both, but if you’re going just for one, breadfruit is the healthiest.
Want to learn more?
You might like to read:
Which Sugars Are Healthier, And Which Are Just The Same?
Take care!
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Fast-Pickled Cucumbers
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Pickled vegetables are great for the gut, and homemade is invariably better than store-bought. But if you don’t have pickling jars big enough for cucumbers, and don’t want to wait a couple of weeks for the results, here’s a great way to do it quickly and easily.
You will need
- 1 large cucumber, sliced
- 2 tbsp apple cider vinegar
- 1½ tbsp salt (do not omit or substitute)
- 3 cloves garlic, whole, peeled
- 3 large sprigs fresh dill
- 2 tsp whole black peppercorns
- ½ tsp crushed red pepper flakes
- 1 bay leaf
Method
(we suggest you read everything at least once before doing anything)
1) Mix the vinegar and salt with 1½ cups of water in a bowl.
2) Assemble the rest of the ingredients, except the cucumber, into a quart-size glass jar with an airtight lid.
3) Add the cucumber slices into the jar.
4) Add the pickling brine that you made, leaving ½” space at the top.
5) Close the lid, and shake well.
6) Refrigerate for 2 days, after which, serve at your leisure:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Making Friends With Your Gut (You Can Thank Us Later)
- Our Top 5 Spices: How Much Is Enough For Benefits? ← 3/5 of these spices are in this recipe!
Take care!
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The Aesthetic Brain – by Dr. Anjan Chatterjee
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Dr. Anjan Chatterjee (not to be mistaken for Dr. Rangan Chatterjee, whose books we have also sometimes reviewed before) is a neurologist.
A lot about aesthetics is easy enough to understand. We like physical features in humans that suggest a healthy mate, and we like lush and/or colorful plants that reassure us that we will have plenty to eat.
But what about a beautiful building, or a charcoal drawing of some captivatingly eldritch horror? And what, neurologically speaking, is the difference between a bowl of fruit and a painting of a bowl of fruit? And what, if anything, does appreciation of such do for us?
In this very readable pop-science book, we learn about these things and many more, from the perspective of an experienced neurologist who explains things simply but with plenty of science.
Bottom line: if you’d like to understand how and why your brain does more things than just process tasks necessary for survival, this book will give you plenty of insight.
Click here to check out The Aesthetic Brain, and learn more about yours!
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Infections Here, Infections There…
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This week in health news, let’s take a look at infections outside and in, and how to walk away from it all (in a good way):
The bird that flu away
This one cannot be described as good news. Basically, bird flu is now already epidemic amongst cows in the US, with 845 herds (not 845 cows; 845 herds) testing positive across 16 states. The US Department of Agriculture earlier this month announced a federal order to test milk nationwide. Researchers welcomed the news, but said it should have happened months ago—before the virus was so entrenched. It currently has a fatality rate of 2–5% in cows; we don’t have enough data to reasonably talk about its fatality rate in humans—yet.
❝It’s disheartening to see so many of the same failures that emerged during the COVID-19 crisis re-emerge❞
~ Tom Bollyky, director of the Global Health Program at the Council on Foreign Relations
Read in full: How America lost control of the bird flu, setting the stage for another pandemic
Related: Cows’ Milk, Bird Flu, & You
Alzheimer’s from the gut upwards
Alzheimer’s is generally thought of as being a purely brain thing, but there’s a link between a [specific] chronic gut infection, and the development of Alzheimer’s disease. This infection is called human cytomegalovirus, or HCMV for short, and usually we’ve all been exposed to it by young adulthood. However, for some people, it lingers in an active state in the gut, wherefrom it may travel to the brain via the vagus nerve “gut-brain highway”. And once there, well, you can guess the rest:
Read in full: The surprising role of gut infection in Alzheimer’s disease
Related: How To Reduce Your Alzheimer’s Risk
Walking back to happiness
Analyzing data from 96,138 adults around the world, showed that more steps meant less depression for participants.
You may be thinking “well yes, depressed people walk less”, but more specifically, increases in activity showed increases in anti-depressive benefits, with even small incremental increases showing correspondingly incremental benefits. Specifically, each additional 1,000 steps per day corresponded to a 9% reduction in depression:
Read in full: Higher daily step counts associated with fewer depressive symptoms
Related: Walking… Better.
Take care!
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