Addressing the safety of high folate levels in the older population and implications for fortification in Ireland

A new study from The Irish Longitudinal Study on Ageing (TILDA) at Trinity College challenges claims from some international scientific circles, that having high blood levels of folate (folic acid) increases the risk of poor cognition in older adults, especially in those with low levels of vitamin B12. On the contrary the study found that having higher folate seemed to be associated with better cognitive function in these older adults.