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Ingredient · Vitamin Mineral

REDUCED IRON

Mixed · 4/10, higher is cleaner

How we reached this

Elemental iron used in cereal fortification. Two concerns: (1) bioavailability is poor (~2-7% absorbed vs 23-35% for heme iron); (2) particles are metallic enough to attract a magnet, raising distinct exposure-form questions vs dietary iron. Iron overload risk in iron-replete adults remains debated. Not banned but EWG flags for excessive use in foods aimed at children.

Sources · 2

Products containing this · 20

About this rating

Ratings run 1–10, higher is cleaner, and are set editorially against the sources above — see the methodology page for how an ingredient rating becomes part of a product score. Last reviewed 2026-05-23.