65% of the population is overweight, 35% of the population is obese, and the poor typically have rates of 75% and 40% respectively. The difference may be statistically significant but lack clinical significance. American eating habits are horrible but the primary culprit is not federal food assistance programs . . . it's capitalism.
Horrible eating habits are the result of ignorance, apathy, or gluttony (pathologic self-indulgence).
It could be said that capitalism offers people far more choices and opportunity, good and bad, what they then choose to do with those choices and opportunity is their business. What is perfectly good in moderation can be, and virtually always is, bad in excess. Unfortunately, not everyone makes wise or prudent choices, even in the presence of informed risk. I mean who doesn't know that smoking is terribly injurious on one's health? Yet ten years from now, there will be no shortage of new smokers.
However, the antithesis of this is not "whereas, people always make good choices in socialism". People may make good choices in socialism ONLY to the extent they HAVE NO other choices. While I'm sure subsisting on boiled potato and cabbage soup is wonderful at helping the collective farm laborer keep that romanticized 'lean if not slightly malnourished' figure, I'm as sure that, if given other choices, many of those people would never have potato and cabbage soup again as long as they shall live.
I agree that blaming federal food programs because poor people are even fatter than the general population is a little absurd, I find it equally absurd to blame "capitalism". Unless one's logic is that capitalism has been responsible for sustained times of plenty and ensuring there is plenty of food to go around. I don't find that a "bad" thing for which one might find appropriate the word "blame" or "culprit".
My parents came from a generation where obesity was virtually non-existant among the classes except for the wealthy. The reason they were "lean" for generations was not by choice, there wasn't enough to eat in order to make one fat. Plus, they washed their clothes by hand, they carried water by hand, they cultivated gardens using hand tools, they walked several miles per week, they removed snow by hand, etc. A few hours of arduous and brisk physical activity every day has never hurt anyone.