No doubt some have reasons for weight issues that are beyond their control, such as genetics or childhood trauma. But I am pretty sure that is a small minority given the enormous number who have serious, debilitating weight issues. Take a look at this chart.
I am a geneticist and I can think of no genetic mechanism to explain such a rise in obesity in the past 40 years. America is a wealthy country with lots high caloric food choices and reduced need for physical exertion, which gives an obvious reason why American might weigh more than they should. But obesity is the extreme, and we have reached the point where over 40% of Americans are not simply overweight but are clinically obese. In fact, there are more obese Americans than overweight ones!
Unlike other physical attributes, obesity is a problem that impacts everyone. It significantly increases the risks of all sorts of chronic diseases as well as dementia and so is a major factor in rising health costs, particularly impacting medicare and medicaid. I doubt that we can control health care costs without controlling obesity rates. So obesity is not just a personal issue, it is a problem affecting the entire community.
Fact is that obesity rates have been rising for 40 years with almost half the country now obese. That is pretty good empirical evidence that Americans are unable to control their weight through behaviors that require self-discipline and so the only remaining solutions I can think of to the obesity epidemic is economic coercion (e.g., soda tax, sugar tax, higher medical premiums for the obese) or the development of a miracle pill.
I have found that the most effective way to control weight is intermittent fasting, which for me is limiting eating to the 8 hour period from 12-8PM (16 hours of fasting). Intermittent Fasting: What is it, and how does it work? | Johns Hopkins Medicine




