If you need to strengthen your glial cells sure then it can help. Being short of fat inside your brain inhibits nerve impulses. They say fish oil is superior but people through the times have made it with the food there was so... you could try flax seeds and see if it makes a difference. Crushed seeds dissolve easier, put 1-2 spoonfuls in water in a bowl and let sit in the fridge over night. This creates a not so wonderful goop that if doing nothing else, is very good for your bowels, LOL.

When increasing anything omega 3, try also decrease omega 6 since the balance is very important.