Vegetable oil vs animal fats
3+ meals per day loaded with carbs/sugar
Solution: carnivore/paleo/keto
I think it was the wholesale replacement of animal fats with vegetable oils. 'We' all demanded that restaurants replace lard with 'healthy' oils. Today vegetable/sunflower/canola oils are in everything. Impossible to avoid if you eat out. Even cooking for yourself it an be difficult. See if you an find a salad dressing not made with some type of industrial/vegetable oil.