So... I think I have 3 points. First is worst. Looking back over a few generations, standard nutritional advice informing doctors, institutions and the public have been poor. Not only inaccurate, but de facto pushing people down bad paths. Low fat & low cholesterol labels led to foods, with processed foods with high sugar & many additives. Cereal instead of a boiled egg. Second is that many norms, like the food pyram…
The food pyramid was not arbitrary, it was the result of highly concentrated lobbying.