Evidence-ranked forms
Compare evidence-backed Iron forms for tolerability, with scores and available products backed by the current DoseRank data.
Ranking aligned to Tolerability
Form-by-form data
The one to buy · Tolerability

Natural Factors, Easy Iron, 60 Chewable Tablets
4.7· 2,605 ratings· $0.20/serving
Ferric Pyrophosphate 20 mg per serving — studied window 14–60 mg
Of 309 products checked for Tolerability, Natural Factors, Easy Iron, 60 Chewable Tablets is the selected Ferric Pyrophosphate product. Ferric Pyrophosphate leads the form comparison with an outcome evidence score of 85/100; its selected product has a DoseRank score of 82.
Questions
Ferric Pyrophosphate ranks #1 of 2 forms for Tolerability with an outcome evidence score of 85/100.
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