PMID: 8596381Mar 9, 1996Paper

Effect of increasing dietary folate on red-cell folate: implications for prevention of neural tube defects

Lancet
G J CuskellyJ M Scott

Abstract

Recommendations by the UK Department of Health suggest that protection from neural tube defects (NTD) can be achieved through intakes of an extra 400 microgram daily of folate/folic acid as natural food, foods fortified with folic acid, or supplements. The assumption is that all three routes of intervention would have equal effects on folate status. We assessed the effectiveness of these suggested routes of intervention in optimising folate status. 62 women were recruited from the University staff and students to take part in a 3-month intervention study. Participants were randomly assigned to one of the following five groups: folic acid supplement (400 microgram/day; I); folic-acid-fortified foods (an additional 400 microgram/day; II); dietary folate (an additional 400 microgram/day; III); dietary advice (IV), and control (V). Responses to intervention were assessed as changes in red-cell folate between pre-intervention and post-intervention values. 41 women completed the intervention study. Red-cell folate concentrations increased significantly over the 3 months in the groups taking folic acid supplements (group I) or food fortified with folic acid (group II) only (p<0.01 for both groups). By contrast, although aggressive int...Continue Reading

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