Sense about Science have a new (ish, I’m a bit slow off the mark on this one!) campaign focus – exposing the claims behind fad diets.
Many societies currently have a problem with nutrition. In places where food is abundant, or supermarkets and fast food chains present the main family options, a lot of people are overeating and eating badly. Poverty doesn’t help, and when you already have little money, companies duping people with claims of superhealthy items and food plans are extremely unethical.
The NHS resources are, in my view, the best place to go for a start. To learn about calories, going about losing weight, “hidden” weight-gain causes, asking a GP about getting and keeping a healthy weight and more – really many of these things should be in schools, so equipping people with skills that will last a lifetime and help them to keep healthy, combating challenges such as lack of support at home when children are growing up.
Unfortunately, a combination of culture generally, celebrity following, personal challenges and insufficient regulation of food suppliers often leads to people who are frustrated and find it difficult to keep healthy and happy. Where there are vulnerable people with problems, there are quacks ready to take advantage and make money from them.