Is Seafood Good for People with Diabetes? Yes, fish and shellfish are great options for people with diabetes! Seafood is an excellent source of lean protein, which should make up a quarter of your meal according to the Diabetes Plate Method . It is recommended to have at least two meals with fish per week. Omega-3 fatty acids are a healthy source of fat that supports heart health. They have been shown to lower risk of heart attacks and stroke, and are important for brain and eye health. How to Shop for Seafood Here are several tips to help you choose seafood at the grocery store: In general