Study: Fad Diets Work (But Not Why You Think)

<span><a href="http://www.shutterstock.com/pic-129447068/stock-photo-diet-weight-loss-breakfast-concept-with-tape-measure-organic-green-apple-cereal-bowl-orange-juice.html?src=8EFunX7plPedZ9ejJ5wxaA-1-6" target="_blank">Dmitry Lobanov</a>/Shutterstock</span>

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters.


What’s the best diet to follow to get healthy—should you go Paleo, low glycemic, low-carb, Mediterranean, or low-fat? For a paper released last month in the Annual Review of Public Health, Yale medical researchers David Katz and Samuel Meller surveyed the scientific evidence and decided … all of the above. Specifically, they found that all of these fad diets can be consistent with these basic principles:

The weight of evidence strongly supports a theme of healthful eating while allowing for variations on that theme. A diet of minimally processed foods close to nature, predominantly plants, is decisively associated with health promotion and disease prevention and is consistent with the salient components of seemingly distinct dietary approaches. [Emphasis added.]

But what about the Paleo diet, which encourages meat eating? The authors conclude the “aggregation of evidence” supports meat eating, as long as the “animal foods are themselves the products, directly or ultimately, of pure plant foods—the composition of animal flesh and milk is as much influenced by diet as we are.” That’s entirely consistent with the Paleo push for meat from pasture-raised animals, and brought to mind a study I wrote about late last year finding that cows fed on grass deliver milk with healthier fat profile than their industrially raised peers.

The Yale paper essentially cuts through the hype of various fad diets and affirms the koan-like advice put forward by author Michael Pollan in his 2008 book In Defense of Food: “Eat food. Not too much. Mostly plants.” In fact, the authors reference Pollan directly in the chart that summarizes their findings:

 

 

We've never been very good at being conservative.

And usually, that serves us well in doing the ambitious, hard-hitting journalism that you turn to Mother Jones for. But it also means we can't afford to come up short when it comes to scratching together the funds it takes to keep our team firing on all cylinders, and the truth is, we finished our budgeting cycle on June 30 about $100,000 short of our online goal.

This is no time to come up short. It's time to fight like hell, as our namesake would tell us to do, for a democracy where minority rule cannot impose an extreme agenda, where facts matter, and where accountability has a chance at the polls and in the press. If you value our reporting and you can right now, please help us dig out of the $100,000 hole we're starting our new budgeting cycle in with an always-needed and always-appreciated donation today.

payment methods

We've never been very good at being conservative.

And usually, that serves us well in doing the ambitious, hard-hitting journalism that you turn to Mother Jones for. But it also means we can't afford to come up short when it comes to scratching together the funds it takes to keep our team firing on all cylinders, and the truth is, we finished our budgeting cycle on June 30 about $100,000 short of our online goal.

This is no time to come up short. It's time to fight like hell, as our namesake would tell us to do, for a democracy where minority rule cannot impose an extreme agenda, where facts matter, and where accountability has a chance at the polls and in the press. If you value our reporting and you can right now, please help us dig out of the $100,000 hole we're starting our new budgeting cycle in with an always-needed and always-appreciated donation today.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate