Omega-3 fatty acids are essential fatty acids, essential to good health. They cannot be created within the human body and must therefore be obtained from the diet.
Omega-3 fatty acids can be found in fish, such as salmon, tuna, and halibut, other seafood including algae and krill, some plants, and nut oils
Some people think that individuals with autism either do not have enough of omega-3 or have too much omega-6 in relation to omega-3 in their bodies.
They think that this may cause or worsen some of the symptoms of autism, such as impaired communication and social difficulties.
They also think that these difficulties can be overcome by increasing the amount of omega-3 in the diet or by taking supplements (such as fish oils) which are rich in omega-3 EFAs.