Omega-3 fatty acids, commonly found in fish oil, have been identified as a potentially potent weapon in the fight against depression and bipolar disorder. Researchers have observed that people in countries with high levels of fish consumption have dramatically lower rates of bipolar disorder than people in countries where fish is not eaten as regularly. In Japan, the lifetime prevalence rate of bipolar disorder is only 0.07% compared to a rate of 4.4% in the United States. The relationship omega-3s have with mood presentation is not entirely clear. However, experts theorize that the fatty acids alter the quality of brain cell membranes and facilitate the travel of serotonin.
Research has also found that omega-3s may enhance cognitive function in people suffering from schizophrenia; there is evidence that the brains of people with schizophrenia have essential fatty acid abnormalities that impact cell membrane function. As such, omega-3s may act in concert with pharmacological interventions to restore balance and promote healthy brain function.
Naturally occurring sources of omega-3 fatty acids include mackerel, herring, salmon, sardines, albacore tuna, and lake trout. Vegan and vegetarian options include flaxseed, chia seeds, hemp seeds, cauliflower, and Brussels sprouts.