An Omega-3 fatty acid, docosahexaenoic acid, aka DHA, is crucial to the vision and nervous system development of infants up to six months old. Just as critical for adults, it plays as essential role in brain functioning heart health, pain reduction, and immune system support our bodies naturally produce small amounts of DHA but to get the levels we need, we must eat a diet rich in this fatty acid (and its partner EPA-eicosapentaenoic acid) or take supplements. Most North Americans don’t get enough omega-3 fatty acids from diet alone. DHA is found in cold-water fatty fish, fish oil capsules, and vegetarian algae supplements. Breast-feeding infants get enough DHA from mother’s milk, if their moms have a sufficient DHA intake.