The short answer · Anemia status
Take ferrous sulfate for anemia status. This is the one to buy.
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21st Century, Iron, 65 mg, 120 Tablets
4.7· 24,859 ratings· $0.04/serving
DoseRank score87
Ferrous Sulfate 65 mg — inside the studied 65-200 mg window
Of 5,460 products scored for Anemia status, 21st Century, Iron, 65 mg, 120 Tablets ranks #1 with a DoseRank score of 87. Ferrous Sulfate is the strongest evidence signal for this outcome.
The form“Why Ferrous Sulfate — not Cyanocobalamin or Folic Acid?”Evidence Strong evidence
Ferrous Sulfate is the strongest evidence signal for this outcome.
- Ferrous SulfateThe pick
Strong evidence · 65 mg
The standard reference form for iron supplementation; high elemental iron content and low cost, but frequent constipation, nausea, and dark stools limit tolerability.
- Cyanocobalamin
Strong evidence · 500 mcg
Synthetic B12 form, stable and inexpensive; must be converted to active coenzymes in the body, and those with MTHFR variants or poor conversion may respond better to methylcobalamin.
- Folic Acid
Strong evidence · 680 mcg DFE
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.
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21st Century, Iron, 65 mg, 120 Tablets ranks #1 for Anemia status with a DoseRank score of 87. The score blends clinical strength, evidence, dose fit, trust signals and value across 5,460 products scored for this outcome.
Ferrous Sulfate is the strongest evidence signal for this outcome.
Ferrous Sulfate at 65 mg lands inside the studied 65-200 mg window. DoseRank scores this product's dose fit at 67 out of 100.
21st Century, Iron, 65 mg, 120 Tablets works out at $0.04 per serving. $0.04 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.04 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.