We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Around 25% of medicare and medicaid spending has to do with complications related to overweight-connected diabetes. That is huge but likely underestimates overweight costs because arthritis, breast cancer, heart disease, and many other problems are also related to or caused by being overweight. For that, and related interesting medical cost info, A Provocative Health Care Proposal
No question that obesity/overweight is a health problem, but BMI is a useless number to judge obesity. Anyone who has significant muscle mass will have elevated BMI (muscles weigh more than fat, remember?). Have to pick a better reference number, if there is one.
I think you have the cause and effect backwards. The lower income isn't a cause of the overeating. Rather, the overeating and lower income are both - in the majority of cases - related to a lack of personal responsibility.
This lack of personal responsibility - sometimes called a sense of entitlement - was foisted upon the public by the Progressives culminating in LBJ's "Great Society" programs and reinforced by Progressives repeatedly telling certain people that by their mere existence, they were entitled to things that one would normally have to work for.
No BMI, please. I cannot tell you how irritated I was with the military when I would constantly be 1 or 2 pounds over the weight limit for my height, but I was THIN. I just have the ability to put on a lot of muscle mass for a woman. Legs, butt, abdomen. I went to boot camp, lost only 2 pounds, but dropped a couple of sizes. Still was 'overweight' according to Navy weight tables. Had to be 'taped' every single weigh in.
Meanwhile, big fat beachball women who were 5'2" passed weight right next to me. It was maddening.
Do not think for a second that the government would know better than most people what to eat and what lifestyle is "good". This would be a disaster and is not about health or longevity but rather about control. Of course it is wise to keep your weight in a normal range, to avoid excessive drinking and smoking. And while it is arguably wise to eat a healthy diet no one can agree on what that actually is. After cigarettes and alcohol The single biggest factor for all of us that affects your health and longevity will be your genes and not your diet. If you want to live a long healthy life select your parents very carefully.
I don't object to insurers using any metric their statisticians have told them are associated with costs. Letting the government instruct them in this is asking for big trouble. The insurers want to stay in business and therefore will engage in constant reality checking. The government will institute one sacred cow after another without regard to the evidence.
I see we have moved from government subsidized healthcare to now that the government is subsidizing healthcare the government gets to control your life and ensure you are living according to the morals of the "betters".
Americans would never surrender their liberty, but they will sell it for free birth control.