Fish Oil
Specific essential fatty acids (EFA's), known as omega-3 oils that are found in fish oil. The specific omega-3 oils that provide benefit are EPA and DHA.
These oils have been shown to have benefit in the following conditions. This list is incomplete. EFA's are beneficial in hundreds of conditions.
Arthritis
Attention Deficit Hyperactivity Disorder (ADHD)
Cancer treatment and prevention
Depression
Diabetes
Heart disease