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Blueberry Blocking Effects of Yogurt

What happened when researchers tried to tease out what’s in dairy that interferes with the health benefits of berries and tea? A trio of Harvard studies that followed more than 100,000 women for more than a decade found that those consuming the most anthocyanins—the brightly colored pigments found in blueberries, strawberries, and other berries—had an …

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Sources of Oxidized Cholesterol

Chicken, fish, and egg powder in processed foods present greater risk from cholesterol oxidation byproducts, but there are things you can do to reduce exposure. “A significant body of evidence indicates that oxidized cholesterol, in the form of oxysterols, is one of the main triggers of AD [Alzheimer’s disease].” But, that’s not all. Cholesterol oxidation …

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Dining by Traffic Light: Green Is for Go, Red Is for Stop

In this article, I explain my traffic light system for ranking the relative healthfulness of Green Light vs. Yellow Light vs. Red Light foods. Whenever I’m asked at a lecture whether a specific food is healthy or not, my reply is: “Compared to what?” For example, are eggs healthy? Compared to some breakfast sausage next …

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The Effects of Too Much Arsenic in the Diet

Even at low-level exposure, arsenic is not just a class I carcinogen, but may also impair our immune function and increase our risk of cardiovascular disease and diabetes. When people hear about arsenic, they think of it as an acute poison, and, indeed, a tiny amount—a hundred milligrams, about one-tenth the weight of a paperclip—could …

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The Antioxidant Power of Açaí vs. Apples

There are so many açaí products on the market now, from frozen pulp in smoothie packs to freeze-dried powder and supplements. How is it eaten traditionally? “In the Brazilian Amazon, the Indian tribes of the forest cut down the tree and eat the palm heart…then urinate on the rest of the tree to attract a …

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How to Lower Your Sodium-to-Potassium Ratio

The potassium content in greens is one of two ways they can improve artery function within minutes of consumption. More than a thousand years ago, for the treatment of hypertension, an ancient Persian medical text advised lifestyle interventions, such as avoiding meat and pastries, and recommended eating spinach. A thousand years later, researchers discovered that …

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