* Dietary Supplement for the Brain Docosahexaenoic acid (DHA) is an omega-3 fatty acid and functions as an important component of brain tissue. DHA has been found to play a significant role in cerebral development throughout the life cycle, especially during fetal development and infancy. DHA is an essential nutrient for pregnant and nursing mothers and also for infants. Source Naturals Soluble DHA dissolves in water and can be conveniently mixed with baby formula or with your favorite beverage.