E501 — Potassium carbonates
E501 (Potassium carbonates) appears in the ingredient lists of 1,033 products sold in the United States. Function: stabilizer.
Nutri-Score
730 rated products
Median values
| Calories | 378 kcal |
| Sugars | 8.1 g |
| Saturated fat | 4.7 g |
| Salt | 0.55 g |
Categories
Status in the United States (FDA)
Listed in the FDA inventory “Substances Added to Food”, with the regulations 21 CFR 73.85, 172.560, 173.310, 184.1619.
Technical effects listed by the FDA: flavoring agent or adjuvant, leavening agent, 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 584-08-7 via Wikidata (CC0)
Products containing it, by country
Products listing this additive in each country edition of Shelfpedia (Open Food Facts data)
Products
1,033 products, most viewed first · page 1 of 22.
Source: Open Food Facts export of 23 October 2026, ODbL, and USDA FoodData Central, April 2026 release, CC0 · Shelfpedia calculations (medians, distributions).