Can High Dose Fish Oil Cure Brain Injury?

Can high dose fish oil cure brain injury? Apparently the theory is that since the brain is composed of a lot of Omega 3 fatty acid and…fish oil has a lot of fatty acid…it just might make sense that consuming lots of fish oil can help the brain heal itself.
Check out this recent article here.
One of the doctors cited in the article said this:
If you have a brick wall and it gets damaged, wouldn’t you want to use bricks to repair it? said Dr. Michael Lewis, founder of the Brain Health Education and Research Institute. By supplementing using (omega-3 fatty acids) in substantial doses, you provide the foundation for the brain to repair itself.
One of the patients featured in the article took 20 grams of fish oil a day. He began to show improvement almost immediately.