One fish, two fish, red fish, blue fish. The health-minded speak often about the benefits of consuming fish, which are an excellent source of proteins, minerals, and, especially, Omega-3 fatty acids
, essential fats which support heart health, improve immune function, reduce inflammation, and can even reverse anxiety. But, as it turns out, all fish are not created equal. Some fish may pose serious health risks due to toxins and metals, and others may have more nutritional value. Read on for six fish you should avoid, and the best choices for your health.