Fish and Meat
Fish is an excellent source of lean protein, especially for the diabetics. Salmon contains healthy omega-3 fatty acids that are quite beneficial for the overall health. To make the fish even more diabetes-friendly, avoid the frying process and instead, just bake or grill it.
Dairy products are a great source of calcium and protein. However, before consuming then, you must take care of the amount of calories and saturated fat in them. Always go for the reduced-fat milk and plain non-fat yogurt. They should be consumed in moderation.
For a diabetes diet, beans are apt as they are one of the best sources of plant-based proteins. Other sources of lean protein include legumes, such as lentils, split peas, chickpeas, hummus etc.