31 Jan 2018 --- There is no need for an upper limit of folate intake as the maximum suggested intake of folate (1 mg/day) is based on a “flawed” analysis, according to a study by Queen Mary University of London and the School of Advanced Study, University of London. The findings support recent calls for the UK Department of Health to approve the fortification of flour with folic acid, to protect babies from having neural tube defects.