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Fig. 6 | Public Health Reviews

Fig. 6

From: Public health failure in the prevention of neural tube defects: time to abandon the tolerable upper intake level of folate

Fig. 6

Distributions of folic acid (FA) intake with voluntary and mandatory fortification with and without 0.4 mg/day FA supplement (data on the usual intake of natural food folate and voluntary folic acid fortification in the UK from the National Diet and Nutrition Survey (NDNS 2008/9–2013/14). [20]. Almost identical distributions are obtained using the usual intake of folate in the USA from the Continuing Survey of Food Intakes by Individuals (CSFII) [21]. Intake from mandatory folic acid fortification assumed to be independent of natural food folate and folic acid from voluntary fortification but with the same population variance. Folic acid supplement assumed to be taken every day)

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