The short answer · Anemia status
Take ferrous sulfate for anemia status. This is the one to buy.
21st Century, Iron, 65 mg, 120 Tablets
4.7· 25,024 ratings· $0.04/serving
Ferrous Sulfate 65 mg — inside the studied 65-200 mg window
Of 4,770 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.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Ferrous Sulfate — not Iron or Calcium L-Methylfolate?”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.
- Iron
Strong evidence · 1.2 g
Essential mineral for hemoglobin and myoglobin; the top cause of nutritional anemia worldwide. Heme iron from animal foods absorbs far better than non-heme plant forms.
- Calcium L-Methylfolate
Strong evidence · 1360 mcg
A calcium salt of active 5-MTHF; delivers ready-to-use folate without the enzymatic conversion folic acid requires, useful for those with MTHFR variants.
The dose“Is the dose actually effective?”Dose fit 67
Ferrous Sulfate at 65 mg lands inside the studied 65-200 mg window.
Ferrous Sulfate
Studied window 65-200 mg · this pick 65 mg
The ranking“Why should I trust this pick?”Trust 93
Strong trust signals — consistently high marks from verified buyer ratings. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 4,770 products scored
- Never paid placement
- Evidence level: Strong · 92
- 478 brands
- 19 ingredients
The price“Can I do better than $0.04 a serving?”Value 91
$0.04 per serving — low price tier for this outcome. Nothing else in this ranking costs less per serving.
Ready?
The #1 pick is $0.04 a serving.21st Century, Iron, 65 mg, 120 Tablets — in stock at a tracked retailer.
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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 4,770 products scored for this outcome.