Non-Vegan Food Additives — Hidden Animal Products
Food additives derived from animals are not always obvious on a label. Carmine hides behind "natural color," shellac glazes candy, and isinglass never appears on wine bottles at all. This guide maps every significant animal-derived additive, where it appears, and what replaces it.
The Labeling Problem
Declared additives
When an animal-derived additive is used as a food ingredient (e.g., carmine as a colorant, gelatin as a stabilizer), it must appear in the ingredient list — though often under technical names or E-numbers that obscure its origin. Carmine must be listed as "carmine," "cochineal extract," or "natural color" in the US; the EU requires "carmine" or "E120."
Processing aids — invisible on labels
Processing aids used to manufacture food but not present in the final product (or present only in trace amounts) are exempt from ingredient declaration in both the US and EU. Isinglass in wine and beer is the primary example — the fining agent is filtered out before bottling, leaving no legal requirement to declare it. This is why wine is frequently not vegan without any indication on the label.
"Natural flavors" — a gray area
Under FDA regulations, "natural flavors" can be derived from animal sources (meat, seafood, dairy, eggs) or plant sources. The label "natural flavors" alone does not indicate which. Products labeled "vegan" that use natural flavors have verified those flavors are plant-derived; standard products have no such obligation.
Animal-Derived Additives in the Database
Matches from our 3,972-additive FDA database — tap for the full regulatory profile.
Carmine is a natural red colorant derived from the cochineal insect (Coccus cacti L.), primarily used to impart red and pink hues to food and beverages. It has been used for centuries as a traditional dye and remains a common food colorant in many countries.
Full profileAmmonium caseinate is a food additive derived from casein, a milk protein, that has been granted GRAS (Generally Recognized As Safe) status by the FDA. While its specific function in food applications remains undocumented, it is utilized in various food formulations.
Full profileCochineal extract is a natural red colorant derived from the cochineal insect (Coccus cacti L.), traditionally used for centuries to produce carmine dye. It functions as a food colorant and flavoring adjuvant in various processed foods and beverages to achieve red, pink, and purple hues.
Full profileL-cysteine is a sulfur-containing amino acid widely used in the food industry for multiple functional roles. It primarily acts as a dough strengthener and flour treating agent, improving dough workability in baked goods by modifying gluten. Additionally, it serves as a flavor enhancer, contributing to savory notes, and can be utilized as a nutrient supplement.
Full profileL-cysteine monohydrochloride is an amino acid derivative used in food production as a dough conditioner, flavor enhancer, and nutrient supplement. It strengthens gluten networks in baked goods and is commonly added to commercial bread and flour products.
Full profileLactose is a naturally occurring disaccharide sugar found in milk, composed of glucose and galactose. In food manufacturing, it serves multiple functions including sweetening, flavor enhancement, and as a processing aid in various products.
Full profileHydrolyzed lactose is a nutritive sweetener created by breaking down lactose (milk sugar) into its simpler components, glucose and galactose. It is used in food products as a sweetening agent and is recognized as safe by the FDA.
Full profileLanolin is a waxy substance derived from sheep's wool that functions as a masticatory substance in food products. It is used primarily in chewing gum and similar products to improve texture and workability.
Full profileMono- and diglycerides are food emulsifiers derived from fats and oils that help blend water and oil-based ingredients. They are widely used in baked goods, margarines, and processed foods to improve texture and shelf life.
Full profileMono- and diglycerides with acetic acid esters and their sodium/calcium salts are emulsifier compounds used to blend oil and water-based ingredients in processed foods. These additives help maintain product stability and texture in various food applications.
Full profileMono- and diglycerides citric acid esters and sodium and calcium salts are complex emulsifier compounds that help blend oil and water-based ingredients in food products. These additives are primarily used in processed foods to improve texture, stability, and shelf life.
Full profileMono- and diglycerides, diacetyltartaric acid esters (DATEM) is an emulsifier composed of glycerides modified with diacetyltartaric acid. It is widely used in baked goods, margarines, and processed foods to improve texture, stability, and shelf life by helping mix oil and water-based ingredients.
Full profileS-allyl-l-cysteine (SAC) is an organosulfur compound derived from garlic that functions as a flavoring agent in food products. It is responsible for some of garlic's characteristic aroma and taste properties and is used to enhance flavor profiles in various food applications.
Full profileMono- and diglycerides acetyltartaric acid esters with sodium and calcium salts is a complex emulsifier and texturizer that helps blend oil and water-based ingredients in food products. It functions to improve texture, stability, and shelf life in various processed foods.
Full profileMono- and diglycerides, ethoxylated (also known as polysorbate-type emulsifiers) are synthetic compounds created by chemically modifying mono- and diglycerides with ethylene oxide. They function as emulsifiers and dough strengtheners in baked goods and processed foods, helping to blend incompatible ingredients and improve texture.
Full profileMono- and diglycerides with lactic acid esters and their sodium and calcium salts form a class of emulsifiers used to blend ingredients that don't naturally mix, such as oil and water. These compounds are commonly used in baked goods, dairy products, and processed foods to improve texture and shelf stability.
Full profileMono- and diglycerides monosodium phosphate derivatives are synthetic emulsifiers used to stabilize and blend ingredients that don't naturally mix well. These compounds function as emulsifiers, leavening agents, and lubricants in processed foods.
Full profileMono- and diglycerides, sodium sulfoacetate derivatives are synthetic food additives derived from glycerides with sulfoacetate groups. They function as flavoring agents or flavoring adjuvants in food products to enhance or modify taste characteristics.
Full profileAcetylated monoglycerides are modified fat-derived emulsifiers created by chemically treating monoglycerides with acetic anhydride. They function as multi-purpose food additives with primary roles in emulsification, anticaking, and drying applications across various food products.
Full profileDetailed Profiles: The Key Eight
Including processing aids that don't appear in ingredient lists.
Carmine / Cochineal Extract
E120Origin
Dried and ground female cochineal insects (Dactylopius coccus). Approximately 70,000 insects per pound of dye.
Used in
Red and pink colorants in yogurt, fruit juices, candy, cosmetics, artificial crab meat.
Vegan alternative
Beet juice powder (betanin), lycopene from tomatoes, anthocyanins from purple sweet potato or black carrot.
Labeling note
The FDA requires carmine to be specifically named on US labels (not hidden as 'natural color') due to documented allergic reactions including anaphylaxis. EU Reg. (EC) No 1333/2008 also requires 'carmine' or 'E120' to appear.
Gelatin
No E-number (food ingredient, not additive)Origin
Collagen extracted from animal bones, skin, and connective tissue — typically pork or bovine.
Used in
Gummy candies, marshmallows, jello, certain yogurts, panna cotta, capsule shells for supplements and medications.
Vegan alternative
Agar-agar (from red algae), carrageenan (from seaweed), pectin (from citrus peel or apple pomace), konjac.
Labeling note
Gelatin is a food ingredient, not a regulated additive, so it does not carry an E-number. It must appear in ingredient lists when used. Some 'vegetarian' products use fish gelatin — which is not vegan.
L-Cysteine
E920Origin
Historically from human hair and hog hair; now predominantly from duck feathers. A synthetic (fermented) version from plant-based glucose exists but is less common in food.
Used in
Bread and baked goods as a dough conditioner — accelerates gluten development, reduces mixing time. Common in commercial bread, bagels, and burger buns.
Vegan alternative
Fermentation-derived L-cysteine is vegan and commercially available. Ascorbic acid can replace some dough-conditioning functions.
Labeling note
Ingredient lists typically say 'L-cysteine' or 'E920.' There is no way to distinguish duck-feather from fermentation-derived L-cysteine on a US label. Kosher-certified breads typically avoid the pork/non-kosher feather source. Products certified by Vegan Action or The Vegan Society have verified the source.
Casein & Whey
No E-number (dairy proteins)Origin
Proteins derived from cow's milk. Casein makes up ~80% of milk protein; whey is the liquid byproduct of cheese-making.
Used in
Non-dairy creamers, protein powders, some margarines, processed cheese alternatives, coffee whiteners. Both are common in products labeled 'dairy-free' that are not vegan.
Vegan alternative
Soy protein isolate, pea protein, oat protein, coconut cream.
Labeling note
Many products labeled 'dairy-free' or 'lactose-free' still contain casein or whey. Only products labeled 'vegan' or 'non-dairy' (certified) can be assumed free of both.
Mono- and Diglycerides
E471Origin
Can be derived from animal fats (tallow, lard) or plant oils (soy, canola, sunflower). The source is not declared on the label.
Used in
Bread (emulsifier), peanut butter (prevents oil separation), ice cream, margarine, shortening.
Vegan alternative
Plant-derived mono- and diglycerides exist and are equally functional. Products certified vegan have confirmed the plant source.
Labeling note
E471 is one of the most common emulsifiers in processed food. The industry default has shifted toward plant sources due to cost and consumer demand, but animal-derived versions remain legal and undeclared. No US or EU labeling requirement distinguishes animal from plant sources.
Processing Aids — Not on Any Label
These substances are not declared in ingredient lists because they are filtered out before the final product is bottled or packaged.
Isinglass
No E-number (processing aid)Origin
Dried swim bladders of fish (typically sturgeon)
Used in
Wine fining, beer clarification — rarely declared on labels
Vegan alternative
Bentonite clay, Irish moss (carrageenan), silica gel
As a processing aid, isinglass is not required to appear in the ingredient list in the US or EU. Wines labeled 'vegan' have used alternative fining agents.
Shellac (E904)
E904Origin
Secreted by the lac beetle (Kerria lacca), harvested from tree branches
Used in
Glaze on candy (Skittles until 2009), fruit coatings, tablet coatings
Vegan alternative
Carnauba wax (E903), candelilla wax
Shellac is technically an insect secretion. Many vegans avoid it. Carnauba wax (from a palm leaf) is the most common vegan substitute.
Lanolin (Vitamin D3 source)
No E-number when used as D3 precursorOrigin
Wool grease extracted from sheep's wool during processing
Used in
Fortified milks, cereals, supplements labeled as vitamin D3
Vegan alternative
Lichen-derived vitamin D3 (increasingly common)
Vitamin D3 (cholecalciferol) in fortified foods is almost always lanolin-sourced. Vitamin D2 (ergocalciferol) is vegan. Lichen-derived D3 is now available but less common in fortified foods.
Look up any additive in the full database
3,972 FDA-listed substances with safety ratings, regulatory status, and adverse event data.
Informational Disclaimer
This guide presents publicly available regulatory and scientific data for informational purposes only. Animal-derivative status of specific commercial products changes as manufacturers reformulate. Always verify with the manufacturer for certified-vegan sourcing. Data sourced from FDA, EFSA, Vegan Action, and The Vegan Society guidelines as of April 2026.