136
people found this helpful, as of 2023
ranked #219,070 most helpful
out of 571,544,897 reviews
★★☆☆☆
Poor source of magnesium
I ordered this under the impression it was purely magnesium citrate. The main ingredient is actually magnesium oxide, which, with a gastric bioavailability of 4% (that is, only about 4mg of every 100mg you ingest is absorbed) is worthless as a source of supplemental magnesium. This prompted me to return it.
