In one of those studies, at the University of California, Irvine, scientists used genetically engineered mice and it is reportedly the first to show that an omega-3 fatty acid known as docosahexaenoic acid, or DHA for short, can slow the accumulation of tau, a protein that leads to plaque and tangles in brain tissue seen in Alzheimer's.
DHA, which is found in foods like eggs and fish, was also found to reduce levels of another protein -- beta amyloid -- which can clump in the brain and form the characteristic plaques that lead to symptoms like memory loss.