Thirty-five years after the first dietary guidelines, how much do we really know about the science behind a healthy diet?
Sign up for the Retro Report newsletter

What Is a Healthy Diet? The Answers Are Unsatisfying

In the 1960s and 1970s, doctors pointed to two likely culprits for the country’s heart disease epidemic: dietary fat and cholesterol. Much of the country tried to avoid fat at all costs. But did the low-fat recommendation help or hurt? And why is nutrition still so controversial?

Transcript

More on the Story

New Dietary Guidelines Urge Less Sugar for All and Less Protein for Boys and Men The New York Times
Retro Report: A Decades-Long Search for A Perfect Diet The Takeaway
Related Coverage
A Healthy Diet’s Main Ingredients? Best Guesses The New York Times
The Diet of the 1980s May Be Why Americans Are So Fat Today Take Part
The Scientific Basis of Low-Fat Dietary Advice? “Best Guesses” The Diet Doctor
The Diet of the 1980s May Be Why Americans Are So Fat Today Yahoo