Grain products fortified with the B vitamin folate could help to reduce memory loss in people aged over-60, according to new research gathered for a recent US-wide health and nutrition survey called NHANES III. Boston-based researchers at the Jean Mayer USDA Human Nutrition Research Center on Aging, at Tufts University, aimed to establish whether there is a relationship between memory loss and blood homocysteine levels, a by-product of amino acid metabolism and something already linked to vitamin B intake (past experiments have shown that homocysteine levels are higher in elderly people with low intakes of B vitamins, especially folate).