Abstract
Docosahexaenoic acid (DHA) is an omega-3 fatty acid that falls into the larger category of polyunsaturated fatty acids (PUFAs). Although many chronic conditions are associated with excessive intake of dietary saturated and trans fatty acids (including obesity, insulin resistance, coronary heart disease, and some forms of cancer), research shows omega-3 fatty acids, including DHA, are essential in the prevention and treatment of numerous diseases. DHA has been shown to be particularly important for fetal brain development, optimal development of motor skills and visual acuity in infants, lipid metabolism in children and adults, and cognitive support in the elderly. In vitro and animal studies also suggest a beneficial role for DHA in certain types of cancer.