Diabetics should not abstain from eating fats. Instead, they need to choose them carefully. One of the healthiest sources of dietary fats is fish, especially fatty fish like salmon, mackerel, and tuna. They contain a high level of omega 3 fatty acids that fight inflammation and improves the cardiovascular function. Fish should be consumed twice a week in the case of patients with diabetes, and in most cases, it could be a suitable replacement for red meats.