Monkeys on a diet: Does cutting calories prolong life?

What a study showing fewer age-related deaths in dieting rhesus monkeys means for humans

This might come as "discouraging news" to a country with 200 million people who are overweight or obese, said Karen Kaplan in the Los Angeles Times. Researchers who tracked 76 rhesus monkeys for as long as 20 years found that the risk of death from age-related disease—such as cancer, heart disease, and diabetes—fell by two-thirds for monkeys that consumed 30 percent fewer calories than monkeys on a normal diet. And that's not all—the monkeys that ate less had less atrophy of gray matter in their brains, and "they even looked less wrinkled and flabby."

"Scientists have long known that dramatically cutting calories can extend the lives of yeast, flies, and rodents," said Carolyn Y. Johnson in The Boston Globe. But this study, funded by the National Institutes of Health and published in the journal Science, is the first to show that the same rule holds true in "a genetic cousin of humans." Still, some biologists point out that the scientists left out deaths in dieting monkeys not attributed to aging—so it's too early to say whether this means monkeys, or humans, can add years to their lives by slashing calories.

Subscribe to The Week

Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

SUBSCRIBE & SAVE
https://cdn.mos.cms.futurecdn.net/flexiimages/jacafc5zvs1692883516.jpg

Sign up for The Week's Free Newsletters

From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.

From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.

Sign up
To continue reading this article...
Continue reading this article and get limited website access each month.
Get unlimited website access, exclusive newsletters plus much more.
Cancel or pause at any time.
Already a subscriber to The Week?
Not sure which email you used for your subscription? Contact us