As anyone who’s recently strolled down the natural-foods aisle at the grocery store can attest, alternative milk is big business these days.

From lactose intolerance to worries about overconsumption of calcium and an increased risk of cancer, health-conscious America’s growing aversion to cow’s milk has resulted in all manner of “milks” derived from items that have nothing to do with mammals — cashew milk, flax milk, hemp milk, quinoa milk.

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Diets based on intermittent fasting — cycling between periods of eating normally and eating nothing — are all the rage right now, with everyone from Silicon Valley tech workers to celebrities like Hugh Jackman and The Rock extolling the benefits. But do they really work?

Yes, say experts, and not only do they result in weight loss, recent research shows they improve cognitive function as well.

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A diet high in sugar has long been implicated in a range of serious health ailments, from diabetes and obesity to heart disease. Now there’s more bad news for dessert lovers: A positive correlation has been found between sugar and cancer.

Molecular biologists in Belgium just published in Nature Communications the results of a nine-year study that showed that the way in which cancer cells process sugar can stimulate tumor growth.

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[DIGEST: New York Times, Time, Boston Globe, Slate, Bustle, CNN, Today]

Boxed macaroni and cheese: It’s one of the most popular convenience foods in the nation, beloved by generations with an estimated 2 million boxes sold every day.

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[DIGEST: Daily Mail, Washington Post, New York Times]

For hundreds of years, doctors have been telling their patients to reduce their salt intake, believing it caused high blood pressure that could lead to heart disease.

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