The short answer · Congenital anomaly
Take folic acid for congenital anomaly. This is the one to buy.
1
NOW Foods, Folic Acid, 250 Tablets
4.8· 43,957 ratings· $0.02/serving
DoseRank score88
Folic Acid 800 mcg — inside the studied 400-4000 µg window
Of 3,496 products scored for Congenital anomaly, NOW Foods, Folic Acid, 250 Tablets ranks #1 with a DoseRank score of 88. Folic Acid is the strongest evidence signal for this outcome.
The form“Why Folic Acid — not L-Methylfolate or 5-MTHF?”Evidence Strong evidence
Folic Acid is the strongest evidence signal for this outcome.
- Folic AcidThe pick
Strong evidence · 800 mcg
Synthetic, oxidized form of folate (vitamin B9); must be converted to 5-MTHF, a step impaired by MTHFR variants — methylfolate is preferred when conversion is a concern.
- L-Methylfolate
Strong evidence · 680 mcg
The bioactive, methylated form of folate (5-MTHF) that bypasses the MTHFR conversion step; useful for those with MTHFR variants who convert folic acid poorly.
- 5-MTHF
Strong evidence · 1700 mcg
The bioactive, methylated form of folate that bypasses the MTHFR conversion step; preferred for individuals with MTHFR variants who convert folic acid poorly.
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NOW Foods, Folic Acid, 250 Tablets ranks #1 for Congenital anomaly with a DoseRank score of 88. The score blends clinical strength, evidence, dose fit, trust signals and value across 3,496 products scored for this outcome.
Folic Acid is the strongest evidence signal for this outcome.
Folic Acid at 800 mcg lands inside the studied 400-4000 µg window. DoseRank scores this product's dose fit at 69 out of 100.
NOW Foods, Folic Acid, 250 Tablets works out at $0.02 per serving. $0.02 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.02 per serving.
No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.