Salmon
It is great source of omega-3 fatty acids, which have been linked to a reduced risk of depression, heart disease, and cancer. A 3-ounce serving contains almost 50 percent of your daily dose of niacin, which may protect against Alzheimer’s disease and memory loss.
Healthy eating tip: Opt for wild over farm-raised, which contains 16 times as much toxic polychlorinated biphenyl (PCB) as wild salmon.