Can supplements keep your brain sharp? Why the evidence is more complicated than it seems

Can supplements keep your brain sharp? Why the evidence is more complicated than it seems

Teacher Photo/ShutterstockMany of us would like to keep our brains sharp as we get older. That has helped create a growing market for “brain-health” supplements. These include fish-oil capsules and postbiotics, the beneficial, non-living compounds and byproducts produced by “good” gut bacteria (probiotics) when they digest dietary fibre or prebiotics. But assessing these products is complicated. A study found that omega-3 supplement use was asso…