Acid Ingredients
We've indexed 49 acid ingredients. Of those, 49 confirmed vegan. Use this hub to look up any acid on a label and find vegan alternatives where needed.
What are acid ingredients?
Food acids regulate pH, enhance flavor, and act as preservatives. Citric, malic, ascorbic, and acetic acids are typically vegan. A few — like stearic acid or certain lactic acid sources — can be animal-derived.
Acid at a glance
Vegan acid ingredients
Commonly found in
All acid ingredients (49)
Adipic Acid
A synthetic organic acid used as a flavoring agent and a gelling aid.
Adipic Acid
An organic acid used primarily as a flavoring agent and a gelling aid in desserts.
Adipic Acid (E355)
An organic acid used as a flavoring agent and a gelling aid.
Ammonium Acetate
Acidity regulator.
Ammonium Adipate
The ammonium salt of adipic acid used as an acidity regulator.
Ammonium Citrates
The ammonium salts of citric acid, used as acidity regulators.
Calcium Hydrogen Malate
A calcium salt of malic acid used as an acidity regulator.
Calcium Malate
A calcium salt of malic acid, used as an acidity regulator and calcium supplement.
Calcium Malates
The calcium salt of malic acid, used as an acidity regulator.
Calcium Silicate
A white, free-flowing powder used to prevent clumping in dry food products.
Calcium tartrate
A byproduct of the winemaking industry, used as an acidity regulator and preservative.
Calcium Tartrate
A salt used as an acidity regulator and preservative, obtained from the winemaking industry.
Calcium Tartrate (E354)
A salt used as a preservative and acidity regulator.
Citric Acid (E330)
A weak organic acid used as a natural preservative and to add a sour taste.
Cream of Tartar
A powdery acidic byproduct of winemaking, used in baking and stabilizing egg whites.
Dicalcium Phosphate
A calcium salt used as a dietary supplement and an anti-caking agent in cereals and pasta.
E270 (Lactic acid)
Used as a preservative and flavoring agent to add a sour taste to foods.
Fumaric Acid
A naturally occurring acid in many fruits and mushrooms, used as an acidity regulator and to enhance flavor.
Fumaric Acid (E297)
Acidity regulator.
Gluconic Acid
An organic acid used as an acidity regulator and leavening agent.
Gluconic Acid
An organic acid used as an acidity regulator and leavening agent.
Glucono Delta-Lactone
A naturally occurring food additive used as a sequestrant, an acidifier, or a curing agent.
Hydrochloric Acid
A strong acid used to adjust pH in food and to produce glucose from starch.
Malic Acid
An organic compound that provides the pleasantly sour, tart taste associated with green apples.
Malic Acid (E296)
An organic acid that provides a sour or tart taste to foods and beverages. It is also used as a flavor enhancer and pH adjuster.
Malic Acid (E296)
Sour flavoring.
Metatartaric acid
A compound used in winemaking to prevent the precipitation of tartar crystals.
Metatartaric Acid
A compound used in winemaking to prevent crystals from forming in the bottle.
Metatartaric Acid
A wine stabilizer used to prevent the precipitation of crystals.
Phosphoric Acid
A strong mineral acid used to give colas a tangy flavor.
Potassium Adipate
The potassium salt of adipic acid used as an acidity regulator.
Potassium Adipate
The potassium salt of adipic acid, used as an acidity regulator.
Potassium Carbonate
A white salt used primarily in the production of cocoa and wine to regulate acidity.
Potassium Gluconate
The potassium salt of gluconic acid, used as a mineral supplement and an acidity regulator.
Potassium Gluconate
An acidity regulator.
Potassium Hydrogen Malate
A potassium salt of malic acid used to regulate acidity.
Potassium Malates
The potassium salt of malic acid, used to balance acidity in foods.
Sodium Adipate
The sodium salt of adipic acid, used to control acidity in food.
Sodium Adipate
The sodium salt of adipic acid, used to regulate acidity in foods.
Sodium Carbonate
A mineral salt used as an acidity regulator, anti-caking agent, and raising agent.
Sodium Hydrogen Malate
A sodium salt of malic acid used as an acidity regulator.
Sodium Malate
A sodium salt of malic acid used to balance acidity in beverages and sweets.
Sodium Malates
The sodium salts of malic acid, used as an acidity regulator and flavoring.
Sodium Phosphates (E339)
A group of mineral salts used as leavening agents, emulsifiers, sequestrants, and pH regulators in a wide range of processed foods.
Succinic Acid
A dicarboxylic acid used as a flavoring agent and acidity regulator to provide a tart, slightly bitter taste.
Tartaric Acid
A white, crystalline organic acid that occurs naturally in many fruits, most notably in grapes.
Tartaric Acid (E334)
A naturally occurring organic acid found in many plants, particularly grapes. It is used as an acidulant, antioxidant, and leavening agent in foods.
Triammonium Citrate
An acidity regulator.
Tricalcium Phosphate
A mineral salt used to fortify foods with calcium and as an anti-caking agent to prevent clumping in powders.
Frequently asked about acid
Are all acid ingredients vegan?
Yes — every acid ingredient indexed on our site (49 total) is confirmed vegan.
How do I spot acid ingredients on a food label?
Look for the substance name or its E-number. Common acid E-numbers include E355, E355, E355, E264, E359. When in doubt, check the manufacturer's vegan certification or contact them directly.