Prebiotic Galacto-Oligosaccharides and Fructo-Oligosaccharides, but Not Acacia Gum, Increase Iron Absorption from a Single High-Dose Ferrous Fumarate Supplement in Iron-Depleted Women.

What Was Tested

The paper reports a study of Copper (Supplement), published as a randomized controlled trial.

Who Took Part

The abstract describes 30 women taking part.

By PubMed's age tags, the people studied were children and adults, women only.

The researchers also tested, in vitro, iron solubility at different pH and dialyzability from the different supplement combinations administered in vivo.

How the Study Was Run

The researchers set it up as a randomized, single-blind and crossover study.

Random assignment meant chance, not the researchers, decided who got Copper (Supplement) and who got the comparison, which limits bias.

Only one side, usually the women, was kept unaware of whether Copper (Supplement) was given.

Each person switched between Copper (Supplement) and the comparison at some point, usually with a gap in between.

The primary outcome, fractional iron absorption (FIA), was assessed by erythrocyte isotopic incorporation 14 d after administration.

Data were analyzed using a linear mixed-effect model.

What Was Measured

Topics PubMed links to this paper include Ferrous Compounds, Gum Arabic, Iron, Oligosaccharides and Prebiotics.

Author keywords: acacia gum, ferrous fumarate, fructo-oligosaccharides, galacto-oligosaccharides, iron absorption and stable isotope.

What This Means in Plain Language

The paper is a randomized, single-blind and crossover study of Copper (Supplement) in 30 women.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

The abstract goes on to report its results in about 5 sentences; this page does not restate them, so read the paper for the findings and their limits.

The publication is from 2022 (The Journal of nutrition), a journal based in United States.

More context: the Copper (Supplement) compound page, all human trials.