Thinking of Going Pescatarian? These 5 Food Groups Are Essential, According to a Dietitian

"Fish and shellfish are great sources of omega-3 fatty acids that help to fight inflammation, keep your skin healthy, and boost heart health," Brigitte told POPSUGAR. This makes them one of the most beneficial pillars of a pescatarian diet. Choose lower-mercury options like salmon, light tuna, cod, scallops, shrimp, lobster, and black sea bass, all of which offer vitamin B12 in addition to heart-healthy fats. Aim to have two to three servings of fish or shellfish each week.