Would like to see their methodology and determine whether there was a causal link or merely a corollary link between diet and cancer risk. Would also like to see the numbers that took part of this longitudinal study.
Seems odd that they could have a 20 year long study (going back to 1994) conclude when the Atkins diet was not big in the dieting world until around 2001. In 1994, we were still in the “low-fat, high-carb” diet phase for trendy diets.
Highly unlikely they can show a causal link. No way they did a randomized study like this for 20 years. Probably just data that shows those who eat a lot of protein (or possibly a certain kind of protein) have more cancer. It doesn’t mean protein is causing the cancer. It doesn’t mean cancer risk is lowered if they reduced their protein intake. This shows protein *may* be a cause.