Within the recommended dosing range (3 drinks a day, 2-3h apart), H.V.M.N. Ketone Ester has been extensively studied and shown to be safe in healthy human adults. Hundreds of athletes have used H.V.M.N. Ketone Ester on the field, in professional sports, and in research studies.
H.V.M.N. Ketone Ester is designated as a food and is considered “Generally Recognized as Safe” (GRAS) by the FDA. You can find the FDA dossier link here: https://www.accessdata.fda.gov/scripts/fdcc/index.cfm?set=grasnotices&id=515
Ketones are a safe, natural fuel source that the bodies normally produce and burn.