OMEGA3 FATTY ACIDS
Evidence is starting to build that links depression with abnormalities in fatty acid metabolism and deficiencies in dietary fatty acid intake.
The omega3 essential fatty acids, such as EPA found in oily fish, such as salmon and mackerel, seem to be most important in this respect. In countries where people eat plenty of oily fish, such as Japan or China, have substantially less rates of depression.
Furthermore, in general, people who eat fish regularly are less likely to report feeling depressed. In addition, low levels of omega3 fatty acids are often found in the blood of depressed individuals.
Supplementing the diet with omega3 fatty acids, especially EPA, is often useful in treating depression. A dose of 1 g of EPA (found in about 3g of concentrated fish oil) each day may be helpful.