E621 — Monosodium glutamate · page 166
E621 (Monosodium glutamate) appears in the ingredient lists of 9,348 products sold in the United States. Function: flavor enhancer.
Nutri-Score
7,592 rated products
Median values
| Calories | 357 kcal |
| Sugars | 3.3 g |
| Saturated fat | 3.6 g |
| Salt | 2.0 g |
Categories
- Snacks1,855
- Canned soups433
- Sausages318
- Soups306
- Corn chips194
- Frozen foods160
- Meals141
- Potato crisps123
Status in the United States (FDA)
Listed in the FDA inventory “Substances Added to Food”, with the regulations 21 CFR 172.320, 182.1.
Technical effects listed by the FDA: flavor enhancer, nutrient supplement, ph control agent, stabilizer or thickener
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 142-47-2 via Wikidata (CC0)
Products
9,348 products, most viewed first · page 166 of 195.
Source: Open Food Facts export of November 1, 2026, ODbL, and USDA FoodData Central, October 2026 release, CC0 · Shelfpedia calculations (medians, distributions).