Docosahexaenoic acid, or DHA, is a polyunsaturated omega-3 fatty acid (PUFA) found throughout the body. It is a major structural fat found in the brain and eye accounting for up to 97% of the total omega-3 fats in the brain and up to 93% of the omega-3 fats in a specific part of the eye, called the retina. It is also a key component of the heart. Numerous research studies confirm that everyone, from infants to adults to the elderly, can benefit from a regular intake of dietary DHA.