Which Tea Is Best, By Science?

Plus: 5 (free) home eye tests

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Today’s 30-Second Summary

If you don’t have time to read the whole email today, here are some key takeaways:

  • Black, white, green, and red teas all have their own phytochemical profiles and bring benefits that are sometimes overlapping, sometimes different.

    • Did you know that neither green nor white tea comes out top for antioxidant power? That’d be black. But green has extra brain benefits, and white is best for oral health. Red? Naturally caffeine-free.

    • See today’s main feature to read about these benefits and more, and how each stacks up against the others!

  • As we age, our collagen levels tend to get depleted more easily. Collagen is important not just for youthful good looks, but also for the health of bones and joints

    • Today’s sponsor NativePath are offering high-quality collagen without additives or harmful impurities

Read on to learn more about these things, or click here to visit our archive

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Worth Its Salt

This salt alternative could help reduce blood pressure. So why are so few people using it?

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Home Eye Tests! (6:16)

Dr. Michael Chua takes us through 5 quick eye tests for free, and recommends you see an eye doctor if you fail any (and were not already known to have that problem):

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❓ MYSTERY ITEM

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🫖 MAIN FEATURE

What kind of tea is best for the health?

It’s popular knowledge that tea is a healthful drink, and green tea tends to get the popular credit for “healthiest”.

Is that accurate? It depends on what you’re looking for…

Black

Its strong flavor packs in lots of polyphenols, often more than other kinds of tea. This brings some great benefits:

As well as effects beyond the obvious:

…and its cardioprotective benefits aren’t just about lowering blood pressure; it improves triglyceride levels as well as improving the LDL to HDL ratio:

Finally (we could say more, but we only have so much room), black tea usually has the highest caffeine content, compared to other teas.

That’s good or bad depending on your own physiology and preferences, of course.

White

White tea hasn’t been processed as much as other kinds, so this one keeps more of its antioxidants, but that doesn’t mean it comes out on top; in this study of 30 teas, the white tea options ranked in the mid-to-low 20s:

White tea is also unusual in its relatively high fluoride content, which is consider a good thing:

In case you were wondering about the safety of that…

Green

Green tea ranks almost as high as black tea, on average, for polyphenols.

Its antioxidant powers have given it a considerable anti-cancer potential, too:

…and many others, but you get the idea. Notably:

...or to expand on that:

About green tea’s much higher levels of catechins, they also have a neuroprotective effect:

Green tea of course is also a great source of l-theanine, which we could write a whole main feature about, and we did:

Red

Also called “rooibos” or (literally translated from Afrikaans to English) “redbush”, it’s quite special in that despite being a “true tea” botanically and containing many of the same phytochemicals as the other teas, it has no caffeine.

There’s not nearly as much research for this as green tea, but here’s one that stood out:

However, in the search for the perfect cup of tea (in terms of phytochemical content), another set of researchers found:

❝The optimal cup was identified as sample steeped for 10 min or longer. The rooibos consumers did not consume it sufficiently, nor steeped it long enough. ❞

Bottom line

Black, white, green, and red teas all have their benefits, and ultimately the best one for you will probably be the one you enjoy drinking, and thus drink more of.

If trying to choose though, we offer the following summary:

  • 🖤 Black tea: best for total beneficial phytochemicals

  • 🤍 White tea: best for your oral health

  • 💚 Green tea: best for your brain

  • ❤️ Red tea: best if you want naturally caffeine-free

Enjoy!

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❤️ OUR SPONSORS MAKE THIS PUBLICATION POSSIBLE

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📖 ONE-MINUTE BOOK REVIEW

The Plant-Based Diet Revolution: 28 Days To A Happier Gut And A Healthier You – by Dr. Alan Desomond

Is this just another gut-healthy cooking guide? Not entirely…

For a start, it’s not just about giving you a healthy gut; it also covers a healthy heart and a healthy brain. There’s lots of science in here!

It’s also aimed as a transitional guide to eating more plants and fewer animal products, if you so choose. And if you don’t so choose, at least having the flexibility to cook both ways.

The recipes themselves (organized into basics, breakfasts, lunches, mains, desserts) are clear and easy while also being calculated to please readers (and their families) who are used to eating more meat. There are, for instance, plenty of healthy proteins, healthy fats, and comfort foods.

The “28 days” of the title refers to a meal plan using the recipes from the book; it’s not a big feature of the book though, so use it or don’t, but the cooking advice itself is more than worth the price of the book and the recipes are certainly great.

Bottom line: if you’re thinking of taking a “Meatless Mondays” approach to making your diet healthier, this book can help you do that in style!

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Wishing you good hydration and many beneficial phytochemicals,

The 10almonds Team