Ferrous Bisglycinate vs Ferrous Sulphate: Which Iron Is Gentler?

Quick Answer

Ferrous sulphate is a common iron salt, but it can cause constipation and stomach irritation in some people. Ferrous bisglycinate is a chelated form of iron designed to be better tolerated and easier on the stomach.

Full Answer

Ferrous sulphate has been used for many years to treat iron deficiency. It can be effective, but many people find it difficult to continue because of side effects such as constipation, acidity, nausea, and stomach pain.

Ferrous bisglycinate is different. It is a chelated iron, meaning the iron is bound to an amino acid structure. This form is designed to improve tolerability and absorption.

Why this matters: If an iron tablet causes discomfort, people stop taking it. If they stop taking it, their iron deficiency may continue.

A gentler iron supplement may help improve compliance.

Chelon contains ferrous bisglycinate equivalent to iron 30 mg with vitamin C. Chelon's product material positions it as a small iron amino acid chelate tablet with high bioavailability, no gastric irritation, and no constipation.

Ferrous sulphate may suit some people. Ferrous bisglycinate may be preferred by people who have difficulty tolerating conventional iron tablets.