https://studyfinds.org/meat-milk-prevent-cancer-gut/   if you're a mouse you need a diverse diet  "Researchers have uncovered a surprising link between the food we eat and the prevention of tumors in the small intestine. More importantly, the Japanese team behind this study found the answer to suppressing tumors in several unlikely foods — including milk and meat."

but high fat and meat increase diabetes risk 20%

https://studyfinds.org/low-carb-diets-diabetes-risk/  "found that people who adhered to a low-carbohydrate, high-fat, and high-protein diet had a 20% higher risk of developing Type 2 diabetes compared to those who ate a more balanced diet. This finding challenges the commonly held belief that cutting carbs is universally beneficial for metabolic health."