Pictures of folks from decades past show that they were all pretty lean. Do you imagine they may have been starving? I don’t think so. Instead, might it be possible that the advice we’ve been given over the last four decades—advice couched as “Dietary Guidelines for All Americans”—has been completely wrong? The Caveman Diet is a perfect way to connect with the healthy habits of our past, recommending fruits, non-starchy vegetables, lean meat, fish, nuts, berries. And no calorie counting, no measuring, they just ate as much as they wanted.