We have more access to food than ever before, but Michael says the American diet has become a catastrophe. "Seventy-five percent of our healthcare spending is on chronic diseases linked to diet. That's really bankrupting us, and that has to do with the way we're eating," he says.

It's not just the high amount of calories we're consuming that are hurting us. Michael says it's also the types of foods we're eating—like processed foods and refined carbohydrates.

"Our diet has changed more in the last 100 years than in the last 10,000, probably with the result that it is affecting our health," Michael says.


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