Protein and Diabetes.
Diabetes risk increases with higher intake of total protein and animal protein. For every 5% of calories consumed from protein instead of carbohydrate or fat, the risk of developing diabetes increased 30%. Increased animal protein intake coincided with increased intakes of saturated fat, cholesterol, and heme iron, and with increased body mass index, waist circumference, and blood pressure. Vegetable protein intake was not associated with diabetes risk.
Diabetes Care, May 2012