Essential fatty acids are a huge big molecular maze so it's best to keep the science simple. Fatty acids as omega 3 ( fish oil and flax oil) and omega 6 ( nuts seeds, evening primrose) help boost brain power because they make brain cell membranes more fluid, this stimulates the communication between the brain cells and improves the transmission signal across nerve cells and down the length of the nervous system. Fatty acids also act an anti-inflammatory agents, lubricating cells for healthier brain function.
Nutritionist James McDonald believes that teenagers and young adults may be more likely to suffer from a deficiency of fatty acids than at other time is our history. This is because many are eating processed foods ( fast food junk food) cooked in adulterated oils not wholesome natural foods which contain the best sources of omega 3 and omega 6 EFA's. My advice is that adolescents try to take an omega 3 and omega 6 supplement every day or as often as possible, simply because the body can't make these fatty acids - they must come from foods.
Those who want to boost brain power and perform better academically often ask me what's the best omega supplement to take alongside the highest natural omega food sources? Ideally I prefer the organic plant omega oils to fish oils. I love using the Yes Ultimate EFA's brand because they are 100% natural cold pressed plant oils containing an ideal ratio of both omega 3 and omega 6 and they are made with no heat or light - 100% unprocessed. Fish oils are time tested and much cheaper but are likely to be more synthetic and need more treating to remove heavy metals and chemicals used to separate them from the fish liver or the whole fish that is crushed.
The best food sources for a healthy supply of daily omega 3 and omega 6 includes; oily fish; sardines and mackerel, with occasional organic salmon, walnuts, spinach, eggs, lamb and fatty chicken, sunflower seeds and sunflower, safflower oils used in salad dressings.