Famine foods we're told are health foods:
Grains: What you eat when you can't hunt. Calories to prevent starvation. Not nutrition.
Legumes: Peasant food. Packed with antinutrients. Requires hours of soaking to make barely digestible.
Rice: Asian populations adopted it because it grows in flood-prone areas where nothing else survives. Not because it's optimal.
Potatoes: Irish ate them during the famine because literally nothing else would grow. Then a million people died when the potatoes failed.
Meanwhile:
Beef, butter, eggs, cheese: What wealthy people ate. What made children grow tall. What fuelled exploration and conquest.
We've been convinced that poverty food is health food while actual nutrition is dangerous.
The greatest marketing achievement in human history.