Body Image Vs. Health

I am amazed at the weird relationship America has with body image and health. The rest of the world (rightly so) views America as fat and unhealthy. We use such unhealthy ingredients in our food like trans fat, corn syrup, etc., and are the only ones that do so! On the other hand, we are also obsessed with "healthy" options in our food. Maybe if we used real ingredients in our food, we wouldn't need these "alternatives." Italians eat tons of food that have natural fats, but are nowhere near as obese as we are on average.
Unfortunately, this has affected everyone, regardless of their weight and health. We wrongly associate how thin somebody is with their health. Many times, extremely thin people are just as unhealthy, or more, as someone who is obese. We try to come up with fad diets to lose as much weight as possible in the shortest amount of time. The reason these work is because they force us to starve ourselves and cause us to lose water weight. The weight (and more) is lost as soon as the diet is over. Why don't we just completely overhaul the way we eat in general so we don't have to worry about these fad diets at all?
We take advice about health from people that have absolutely no scientific credibility, and are surprised when it doesn't work. We need to listen to doctors and scientists who have studied the science of our body and what we need to survive. Don't give people with "miracle drugs" and "miracle diets" equal time as a scientist and doctor who has a solution that is proven by science and evidence. Treat them like they are, con men. Instead, let's turn our attention to changing our health care system where everyone can get equal chance at health care.