Creatine

Creatine monohydrate is one of the most studied sports-nutrition supplements, and it comes up frequently for people trying to maintain strength and lean mass while losing weight on a GLP-1 medication, usually alongside resistance training.

Below are current Amazon listings ranked by price per serving across powders, capsules, and gummies. Plain creatine monohydrate powder is typically the least expensive form per serving; flavored and gummy formats trade cost for convenience. As always, run new supplements past your care team.

Prices refreshed as of Jul 15, 2026, 11:26 PM ET.