Additive · Stabilizer

E501ii — Potassium hydrogen carbonate · page 2

E501ii (Potassium hydrogen carbonate) appears in the ingredient lists of 397 products sold in the United States. Function: stabilizer.

397products with a complete record
46%rated A or B on Nutri-Score
9.1 gsugars per 100 g (median)
0.44 gsalt per 100 g (median)

Nutri-Score

How rated products spread
A 12%B 34%C 10%D 23%E 21%

311 rated products

Median values

Per 100 g, across all 397 products
Calories222 kcal
Sugars9.1 g
Saturated fat1.4 g
Salt0.44 g

Status in the United States (FDA)

Listed in the FDA inventory “Substances Added to Food”, with the regulations 21 CFR 73.85, 184.1613.

Technical effects listed by the FDA: formulation aid, 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 298-14-6 via Wikidata (CC0)

Products

397 products, most viewed first · page 2 of 9.

O
Original club soda1 scanB
Whole Wheat Tortillas, Ortega
Whole Wheat TortillasOrtega · 45 g1 scanB
Featherweight baking powder, Hain Pure Foods
Featherweight baking powderHain Pure Foods1 scanA
I
Iced Coffee DrinkIlly · 240 ml1 scanA
C
Caffe Latte Espresso Drink With MilkIlly · 340 ml1 scanA
F
Fruit & Grain BarsNature Trails1 scanD
Club Soda, Vintage
Club SodaVintage1 scanB
M
Milka chocolate bar oreo 1x3.52 oz1 scanE
Smart Wraps, Toufayan
Smart WrapsToufayan · 285g1 scanA
Toufayan, Toufayan
ToufayanToufayan1 scan
Alkaline Water, Wegmans
Alkaline WaterWegmans · 50.70oz1 scanB
Blueberry Flavored Fruit & Grain Cereal Bars, Great Value
Blueberry Flavored Fruit & Grain Cereal BarsGreat Value · 8 x 1.3 oz (10.4 oz)1 scanD
Fruit & Grain Bars, No Manufracturer
Fruit & Grain BarsNo Manufracturer · 8 x 1.3 oz (10.4 oz)1 scanD
H
Hydrate alkaline water1 scanB
H
Hydrate electrolyte purified water1 scanB
Alkaline water, Good & Gather
Alkaline waterGood & Gather1 scanB
Alkaline water, Good & Gather
Alkaline waterGood & Gather1 scanB
Alkaline water
Alkaline water1 scanB
ProCare, Kirkland Signature
ProCareKirkland Signature · 42 oz1 scan
Ionized Alkaline Water, Kirkland
Ionized Alkaline WaterKirkland · 18 x 1L1 scanB
C
Cranberry + antioxidants naturally flavored nutrient enhanced water beverage, cranberry1 scanC
Lemonade + vitamin c nutrient enhanced water beverage, lemonade + vitamin c, Whole Foods Market
Lemonade + vitamin c nutrient enhanced water beverage, lemonade + vitamin cWhole Foods Market1 scanB
Juno Energy Drinks, Juno
Juno Energy DrinksJuno1 scan
Buffalo Style Wingteasers, HEB
Buffalo Style WingteasersHEB1 scanD
Sprouts Electrolyte Water, Sprouts
Sprouts Electrolyte WaterSprouts1 scanB
Airborne Immune Support Supplement
Airborne Immune Support Supplement1 scan
Immube support
Immube support1 scan
Zesty orange effervescent tablets, Airborne
Zesty orange effervescent tabletsAirborne1 scan
Enhanced Water Beverage, essentia hydroboost
Enhanced Water Beverageessentia hydroboost1 scanC
enhanced water beverage raspberry pomegranate flavored, essentia hydroboost
enhanced water beverage raspberry pomegranate flavoredessentia hydroboost1 scan
C
Club SodaAhold · 12 0z1 scanB
F
Fruit & Grain Breakfast Bars1 scanD
Energy labs electrolyte hydration drink tablets tube
Energy labs electrolyte hydration drink tablets tube1 scanE
Gu, hydration drink tabs, lemon lime, Gu
Gu, hydration drink tabs, lemon limeGu · 14160331 scan
Naan Flatbread, Ranaji
Naan FlatbreadRanaji1 scan
S
SportwaterBodyarmor · 1.5L1 scanB
Magnum Ice Cream Double Caramel Iced Coffee, Victor Allen’s
Magnum Ice Cream Double Caramel Iced CoffeeVictor Allen’s1 scanE
Zero Sugar Hydration, Nuun
Zero Sugar HydrationNuun1 scan
Raspberry Lemonade, nuun
Raspberry Lemonadenuun1 scan
Roasted “Pork” Tonkotsu Ramen Soup, Immi
Roasted “Pork” Tonkotsu Ramen SoupImmi · 59g1 scanE
Sour Punch Loaded Pre Sour Blue Raz, Ryse
Sour Punch Loaded Pre Sour Blue RazRyse · 435 g1 scan
P
Plant-based protein crumblesBeyond Meat1 scanA
Ryze supplements, Ryse
Ryze supplementsRyse1 scan
Still Water, Open Water
Still WaterOpen Water · 16 fl oz1 scanA
Canned water, Open Water
Canned waterOpen Water1 scanA
Watermelon Lime, KENETIK
Watermelon LimeKENETIK1 scan
A
Alkaline water + electrolytesAlka Nix · 1000ml1 scanB
Zipfizz Fruit Punch, Zipfizz
Zipfizz Fruit PunchZipfizz1 scan

Source: Open Food Facts export of November 1, 2026, ODbL, and USDA FoodData Central, October 2026 release, CC0 · Shelfpedia calculations (medians, distributions).