Everyone wants to prevent dementia! Companies who manufacture fish oil supplements loudly proclaim the possible benefits of omega-3 fatty acids for this problem. But a 2-year British study of elderly subjects (the longest and largest study ever done on this subject) has compared the use of omega-3 fatty acids from fish oil with an olive oil placebo. The study found no differences between the groups, except that those taking the highly recommended fish oil had more flatulence, belching and loose stools!
PositiveTip: An active mind and a healthy lifestyle are the best way of reducing the risk of dementia.