Since the 1970s we have been limiting our fat consumption, avoiding saturated fat. For over 40 years people have been buying low fat food. We have reduced our meat consumption. We have integrated vegetarian meals, tofu, legumes,…. Can we say that we are healthier?Fats have been replaced by carbohydrates. Our carbohydrate intake has increased by 46%. But why have we changed the diet of our ancestors?
It was Ancel Keys, an American scientist, who in the 1970s wanted to understand why cardiovascular disease was on the rise. He claimed that the culprit was saturated fat. However, several factors could explain the increase in cardiovascular disease: the high number of smokers in the 1970s, the increase in the consumption of processed foods with the arrival of women in the labor market and the arrival of trans fats. His study is now called into question, the scientific approach has not been respected.