
Enjoy Heart-Healthy Fish in Moderation
Fish is the one animal product that is consistently a part of diets in Blue Zones, albeit in smaller portions. The diet guidelines recommend no more than three small servings (three ounces or less) of fish a week. Typically, the fish eaten in this diet are small, inexpensive fish like cod, tuna, and sardines. Despite their modest appearance, these fish pack a serious nutritional punch. White fleshed fish is loaded with B vitamins, including niacin (vitamin B3), which helps boost digestion, brain health, and energy, and folate (vitamin B12), which supports healthy red blood cells. Bluefish like tuna are packed with vitamins and necessary nutrients like potassium and magnesium. Fish are also the best source of omega-3, which helps supports heart health and may lower the risk of heart disease and stroke.