Fish Oil Prevents Alzheimer's Plaques - WebMD

Why does fish oil help prevent Alzheimer's disease? Your brain needs a fish oil fatty acid to make a plaque-fighting protein, UCLA researchers find.

It's known that people who get plenty of DHA, a fish oil fatty acid, have a reduced risk of Alzheimer's disease, note Greg M. Cole, PhD, associate director of the UCLA Alzheimer's Disease Research Center, and colleagues.

Why? Cole's team had a clue. People with Alzheimer's disease tend to have low levels of a brain protein called LR11 (also known as SorLA). And about 15% of people with Alzheimer's disease carry a genetic mutation that reduces LR11....