In his book, "Eat Fat: Get Thin," Hyman recommends incorporating high-fat foods like salmon and olive oil into a diet focused around vegetables.
The author and doctor led former president Bill Clinton away from strict veganism more than a decade ago by encouraging him to sprinkle the occasional serving of fish and lean meat into his diet, according to the New York Times.
Hyman tells the Times his plan is further informed by his own struggles with weight - after failing to trim down on several types of popular low-fat, carb-heavy diets of the 1990s, he was encouraged to find a better solution. Here's a look at what Hyman eats today.
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