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Ingredient

Iron Bisglycinate

Promising

A chelated form of iron with reportedly better tolerability than ferrous sulfate.

How it works

Iron is essential for hemoglobin synthesis and oxygen transport; bisglycinate may be absorbed via amino acid pathways.

Evidence

Bisglycinate may match or exceed ferrous salts on absorption with fewer GI side effects.

Studies

Name et al., review placeholder
Comparative bioavailability of iron bisglycinate vs. ferrous sulfate.
PubMed 31504080 ↗

One ingredient, one study, one product worth your money.

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