Is it all the fault of fat?

Meat or potatoes? The notoriety of fat was established in the early 1980s: the U.S. government issued "Nutritional Health Guidelines" nationwide, solemnly recommending that people's daily diet should be based on potatoes, rice, bread and grains. High-fat and high-protein foods such as meat and milk have been pushed to the "blacklist" of dietary guidelines. From then on, people began to believe that "potatoes are healthier than meat." Americans who are at the forefront of the times have thus embarked on an arduous national "meat abstinence journey". "Vegetarian" has become the most fashionable move, and