The Science Behind the Mediterranean Diet: How Often Should You Eat Fish for Maximum Health Benefits?

4. What Counts as a Serving?

A standard serving of fish, according to dietary guidelines, is typically 3 to 4 ounces of cooked fish per meal. This portion—about the size of a deck of cards—delivers the nutrients needed for health benefits. For more details, the Academy of Nutrition and Dietetics offers helpful serving size visuals.