Additives that are not vegan

Made from any animal material, including milk, egg, wool and bees. 37 additives.

The vegetarian column separates products like beeswax, lanolin-derived vitamin D3 and whey from those that need slaughter or kill insects, like shellac and carmine. Additives whose source may or may not be animal are not here. They are on the list of additives whose source is not fixed.

Additive	Vegan	Vegetarian	What it is made from
Animal lipase	No	No	Extracted from the forestomach tissue of calves, kids or lambs, or from animal pancreatic tissue.
Antarctic krill meal	No	No	Dried and milled Euphausia superba, a small crustacean harvested in the Southern Ocean.
Avian pepsin	No	No	Obtained from the glandular stomachs of chickens. It is an animal-derived enzyme, and anyone avoiding animal ingredients should treat it as one.
Beeswax (yellow and white) E901	No	Yes	Rendered from the honeycomb of the honey bee after honey extraction, then filtered; the white form is additionally bleached.
Bone phosphate INS 542	No	No	Made by degreasing, calcining and grinding the bones of slaughtered animals, usually cattle. Chemically it is much the same as mineral-sourced calcium phosphate, but its origin is not, and the source is not evident from a label that simply says calcium phosphate.
Calcium lactobionate	No	Yes	Made by oxidising lactose to lactobionic acid and neutralising with calcium. The starting lactose is from milk.
Carmines E120	No	No	Extracted from the dried bodies of the female cochineal scale insect, Dactylopius coccus, farmed chiefly in Peru and the Canary Islands. Carminic acid is drawn out with hot water and precipitated as an aluminium lake. Because it is insect-derived it is not vegan or vegetarian, and it raises questions under some halal and kosher rulings.
Catalase (bovine liver)	No	No	Extracted from bovine liver. A microbial catalase from Micrococcus lysodeikticus is listed separately and is not animal-derived.
Chitosan	No	No	Made by treating chitin with alkali. Chitin comes mainly from shrimp and crab shells, which makes most chitosan a shellfish-derived ingredient; fungal sources exist.
Cholic acid INS 1000	No	No	Cholic acid is the principal bile acid of mammals and is obtained commercially from the bile of slaughtered cattle and sheep. Anyone avoiding animal-derived ingredients should treat it as one.
Cochineal extract; carmine	No	No	Extracted from the dried bodies of the female cochineal scale insect, Dactylopius coccus. Because it is insect-derived it is neither vegan nor vegetarian, and it raises questions under some halal and kosher rulings.
Desoxycholic acid	No	No	A bile acid of mammals, obtained commercially from bile. Anyone avoiding animal-derived ingredients should treat it as one.
Enzyme-modified fats	No	Depends on source	Made from refined beef fat, butterfat or milkfat, steam-rendered chicken fat, or milk products, which are held with enzymes until enough fatty acid has been released. The enzymes are then inactivated and the product is concentrated or dried.
Fish protein isolate	No	No	Extracted and purified from fish, with the oil and other fractions removed.
Gelatin	No	No	Made by partial hydrolysis of collagen from the skin, tendons, ligaments and bones of animals — usually pigs and cattle, sometimes fish. It is an animal product, and which animal it came from matters for several diets.
Hydrogenated sperm oil	No	No	Hardened by hydrogenation from oil taken from the sperm whale. Sperm whales are protected internationally and the oil is not in commercial use, so the listing outlived its trade.
Lactitol E966	No	Yes	Made by hydrogenating lactose, the sugar of milk. That makes it the only common polyol with a dairy-derived starting material.
Lanolin	No	Yes	Recovered from the water used to scour raw wool, then refined. It is an animal product, though it is taken from the fleece rather than the animal.
Lysozyme E1105	No	Yes	Extracted from hen egg white, where it occurs naturally as part of the egg's own defence against bacteria.
Menhaden oil	No	No	Pressed and refined from menhaden, a small oily Atlantic fish caught in bulk for oil and meal rather than eaten directly.
Microparticulated protein product	No	Yes	Made by heating and shearing whey or egg white protein into microscopic spheres. The starting protein is dairy or egg.
Myoglobin	No	No	Extracted from animal muscle tissue. It is an animal protein, and the colour changes people see in meat are this molecule binding oxygen and then oxidising.
Ox bile extract	No	No	Extracted from the bile of cattle, a slaughterhouse by-product.
Pancreas extract	No	No	Extracted from the pancreas of slaughtered animals, usually pigs or cattle. It is an animal-derived preparation.
Pancreatin	No	No	Extracted from the pancreas of pigs or cattle, a slaughterhouse by-product. Microbial enzymes now do much of the same work.
Pepsin	No	No	Extracted from the glandular layer of porcine or bovine stomachs. The porcine source is why pepsin raises a specific concern under halal and kosher rules beyond the general question of animal derivation.
Reduced lactose whey	No	Yes	Made by crystallising and removing lactose from whey, then drying.
Reduced minerals whey	No	Yes	Made by removing minerals from whey using ion exchange or electrodialysis, then drying.
Shellac, bleached E904	No	No	Scraped from tree branches as the secretion of the lac insect, Kerria lacca, in India and Thailand, then washed, filtered and bleached. Insect fragments are removed during refining but the raw material is an insect product.
Sodium caseinate	No	Yes	Made by precipitating casein from skimmed milk with acid and neutralising with sodium hydroxide. It is a declarable milk allergen.
Spermaceti wax	No	No	Obtained from the spermaceti organ of the sperm whale. It is an animal product from a protected species.
Starter distillate	No	Yes	Distilled from a milk culture fermented with the same bacteria used for cultured butter. The starting material is dairy.
Trypsin	No	No	Extracted from the pancreatic tissue of cattle or pigs, a slaughterhouse by-product.
Vitamin D3	No	Yes	Made by ultraviolet irradiation of cholesterol extracted from lanolin, the wax in wool shorn from living sheep. D2, from yeast or fungi, is the non-animal alternative form of the vitamin.
Whey	No	Yes	A by-product of cheese and casein manufacture, then dried or concentrated. Whey from rennet-set cheese carries whatever rennet was used, which is a separate question from the whey itself.
Whey protein concentrate	No	Yes	Concentrated from cheese whey by membrane filtration, then dried.
Whole fish protein concentrate	No	No	Made by extracting the oil and water from whole fish and drying the remaining protein.

What this list is not

It is not a list of foods, and it is not dietary advice. It lists additives, not what a food contains. Processing aids, carriers and other ingredients can bring in animal material that no additive entry covers. Each additive’s page gives the full derivation.