But who is to choose the program? The concept of “nutrition” is as mutable as the concept of “truth”. You can find scientific studies that tout the benefits of a paleo diet, a vegan diet, a low-carb diet, etc etc etc. I spent 50 years hearing how bad butter was for humans, now it’s not. Until you can find something beyond the most basic “vegetables good/Twinkies bad” doctrine for people to agree on, a nutrition class will make virtually no impression on a teenager.