Americans have gotten heavier since 1980 — this we know.
And most doctors would say that the extra weight has made us more prone to heart disease, diabetes, arthritis, hypertension and even cancer.
It's become a source of major national anxiety. The Robert Wood Johnson Foundation predicts that every state in the nation will have an obesity rate greater than 44 percent by 2030, and will be sicker for it.
But not everyone is convinced obesity in America warrants so much gloom and doom. Take Abigail Saguy, an associate professor of sociology at the University of California, Los Angeles and the author of a new book called What's Wrong With Fat? She argues we've gone too far in equating obesity with disease.