healthy aging

With health span, the years we spend in good health, offering personal and societal payoffs like greater independence, productivity, and lower healthcare costs, understanding the role of diet is more than a lifestyle issue.

Many of us overeat, as reflected in rising BMIs. It is a problem quickly solved theoretically by calorie reduction, although in practice it is a tougher problem.

There has been confusion about the impact of obesity on health as people age, with some data