that are similar to omega 3 fatty acids. so essentially you're trying to replace the very substance that the brain is comprised of, with this thing that you can take by mouth, or in this case, in this feeding tube. >> if i'm watching this at home, should i just start taking omega 3's in large doses to ward off alzheimer's? >> it's interesting. we talk a lot about the idea of supplements and you know my stance is i don't take many of them. i don't think there's a lot of evidence that most of them work. i have a difference stance with regard to omega 3's for exactly what you're saying. i think short of having a head injury, that it can provide some benefit, anti-inflammatory, antioxidant benefit to the brain, it's really compelling. the one down side, i think, is that it can sometimes cause bleeding problems in people. so if you've just had a trauma, you're worried about bleeding, you got to be careful giving the high dose, omega 3 fatty acids.