Hebephilia is a characteristic of r-selection (r/K selection theory) and should be forcefully discouraged, if you want to maintain a high civilization (or perhaps any civilization).
Regarding the food pyramid, it's introduction as a model for healthy eating coincided with the demonization of fat and the promotion of carbs, which combined with "modern food" resulted in the explosion of obesity and related health problems. Before that, they had promoted "the four food groups" (meat, dairy, vegetables/fruit, and grains), with far less processing. The population was notably far healthier.
Hebephilia is a characteristic of r-selection (r/K selection theory) and should be forcefully discouraged, if you want to maintain a high civilization (or perhaps any civilization).
Regarding the food pyramid, it's introduction as a model for healthy eating coincided with the demonization of fat and the promotion of carbs, which combined with "modern food" resulted in the explosion of obesity and related health problems. Before that, they had promoted "the four food groups" (meat, dairy, vegetables/fruit, and grains), with far less processing. The population was notably far healthier.