TABLE 2.
Percentage of prescription and nonprescription prenatal supplements containing folic acid and other forms of folate1
| Form of folate | Prescription (n = 53) | Nonprescription (n = 120) |
|---|---|---|
| Folic acid, % | 92 | 71 |
| L-5-MTHF, % | ||
| Calcium salt | 15 | 11 |
| Glucosamine salt | 4 | 11 |
| Salt not specified | 13 | 3 |
| Combination, folic acid + L-5-MTHF, % | 25 | 7 |
| Food (broccoli, citrus peel), % | 0 | 11 |
1
Based on all prenatal supplement products in the DSLD and DailyMed databases entered between September 2015 and March 2019. Note: the percentages do not add up to 100% because some of the supplements are counted in >1 category. DSLD, Dietary Supplement Label Database; L-5-MTHF, L-5-methyltetrahydrofolate.