Omega 3 is also essential to our mood. Those with depression are recommended to take a fish oil supplement. Omega 3 in fish oil enhances cells' ability to inter-function. It also stimulates serotonin which works as a natural anti-depressant. Meanwhile, omega 3 of the EPA type can reduce depression in patients with no response to drugs. Food with high omega 3 content provides adequate fatty acids to our bodies. It is advisable, however, to consult a doctor before taking a fish oil supplement. Just keep in mind that no supplement is better than real food.