• cereal made by Kellog then packed with sugar post ww2 due to huge sugar surplus then sold directly to kids and convinced everyone that it was good for you somehow. The Vietnamese eat Pho for breakfast which is why they won the Vietnam war.
• The low fat craze convincing everyone that unsaturated fats are bad and putting sweetners in everything
• dairy industry convincing everyone to drink milk even though adults dont need milk and large portions of the population are lack toes intolerant
• the food pyramid that put wheat and corn into everything and continues to do so making my coeliac ass life very difficult
• italian food isn’t even real
• contemporary protein craze to sell cheese creating waste product and probably combat vegans by making raw meat eaters filled with worms

Any others im missing?