E170i — Calcium carbonate · page 2

Status in the United States (FDA)

Listed in the FDA inventory “Substances Added to Food”, with the regulations 21 CFR 73.70, 73.1070, 184.1191.

Technical effects listed by the FDA: anticaking agent or free-flow agent, color or coloring adjunct, drying agent, formulation aid, humectant, leavening agent, lubricant or release agent, masticatory substance, nutrient supplement, ph control agent, processing aid

The inventory is a partial list, and a listing is not an FDA approval of every use; the regulations set the permitted uses.

U.S. Food and Drug Administration, Substances Added to Food (updated 9/8/2026), public domain · CAS 471-34-1 via Wikidata (CC0)