There is just a mountain of information both good and bad out there, that it's nearly impossible to sort through now.
And on top of the misinformation that's out there, a lot fo the actual science on diet and health out there is not settled and changes based on new studies.
When people think of highly influential and devious industries, they usually think of oil and gas, and military. But the food lobby is incredibly powerful and influential. Every bit of information we get as consumers about nutrition that is accurate was fought for to get it in front of us. The food cartels don't want consumers to know basic facts about food like what's in it, how much sugar was added, and what preservatives are in it. If the food lobby had its way, there would be no ingredient or nutrition information on the sides of food packages.
And obesity is such a complex and tough issue to discuss. Yes, there are some heavy people who are perfectly healthy, but they unfortunately are the exception to the rule. Weight is something tens of millions of Americans struggle with, it's all ecompassing. It effects mental health as well as physical. There's no easy answers and it's a world swimming with disinformation. The whole of society is setup against heavier people losing weight. But we have to do something as a country.
And every person's situation is unique. Tehre are genetic and social factors as well as environmental factors that make each person's journey different.