A lot of these studies are observational including every single one of the cancer studies cited, and it's very difficult to separate high-calorie intake from hi

A lot of these studies are observational including every single one of the cancer studies cited, and it's very difficult to separate high-calorie intake from high-protein intake. In the general population the group who eats a lot of protein overlaps a lot with the group who eats too much food in general and that excess in caloric intake is much more likely to be the cause of health problems than the protein intake.