But if high-fat, high-sugar and highly processed foods are bad for the health of Americans, are they any good for people in India and China? The answer, obviously, no.
PepsiCo claims to be "investing in a healthier future for people and our planet." But how is that possible when their top-selling products include Mountain Dew and Doritos?
A conversation with author Steve Ettlinger reveals the mines, mile-long factories and enormous industrial effort that goes into making a Twinkie -- an archetype of the processed foods found in so many Americans' diets.