Also known as: Egg albumin, Egg white, Ovalbumin, Blood albumin
Not Vegan
Most commonly derived from egg whites (ovalbumin). Can also be derived from blood serum (serum albumin) or milk.
Ingredient Data
Not Vegan
Egg albumin; Egg white; Ovalbumin; Blood albumin
Most commonly derived from egg whites (ovalbumin). Can also be derived from blood serum (serum albumin) or milk.
Baked goods, wine and beer (as a fining agent), some pasta, sports recovery products.
Aquafaba (chickpea water), flaxseed gel, commercial egg replacers.
Egg albumin is a very effective foaming and binding agent. 'Egg-free' does not necessarily mean albumin-free if blood albumin is used.
In depth
Albumin is a family of water-soluble proteins found in animal tissues and fluids. The commercial forms most relevant to food are egg albumin, blood albumin, and milk albumin. Egg albumin, technically ovalbumin, is the dominant protein in egg white and is the version most often used in food manufacturing.
Egg albumin is produced by separating egg whites from yolks, then pasteurizing and often spray-drying the liquid into a powder. This dried egg white powder is valued for its ability to trap air and set into a stable structure when heated.
Blood albumin, sometimes called serum albumin, is recovered from the blood of slaughtered animals, typically cattle or pigs, and processed into a powder. Milk-derived albumin comes from whey. All three are animal-derived, so albumin in its standard commercial forms is not vegan regardless of which source is used.
On ingredient lists, albumin may appear under several names, including albumin, albumen, egg albumin, egg white, dried egg white, ovalbumin, or serum albumin. The spellings albumin and albumen are often used interchangeably in food labeling, though albumen more specifically refers to egg white.
In many markets, egg is a recognized major allergen and must be declared, so egg-derived albumin usually appears clearly. Blood albumin is not an egg allergen, which means a product labeled egg-free could still contain animal-derived albumin from blood or milk.
A further complication is fining agents used in wine and beer. Albumin used to clarify a beverage acts as a processing aid and is filtered out before bottling, so it may not appear on the label at all. For that reason, an ingredient list alone cannot always confirm whether albumin was used in production.
The most widely used vegan substitute for egg albumin is aquafaba, the viscous liquid from cooked or canned chickpeas. Aquafaba whips into a stable foam and can replace egg white in meringues, mousses, and some baked goods, making it the closest functional match for albumin's foaming ability.
For binding rather than foaming, ground flaxseed or chia seed mixed with water forms a gel that holds ingredients together, and commercial egg replacers based on starches and leavening agents work in many baked recipes. Plant proteins such as pea and potato protein isolates are also used industrially to mimic albumin's structure-building and emulsifying properties.
No single substitute matches albumin across every use, so the best choice depends on the function needed. Foaming applications favor aquafaba, while binding applications favor seed gels, starches, or dedicated egg replacers.
Because albumin is prized as a binder, foaming agent, and clarifier, it turns up in products that are not obviously egg-based. Some fresh and dried pastas include egg white, and certain baked goods, glazes, and confections rely on albumin for structure and shine.
Protein and sports-recovery products are another common source, since egg white protein is sold as a supplement ingredient. Some candies, marshmallows, and nougats use albumin for aeration.
Wine and beer are frequently overlooked. Albumin, along with other animal-derived agents such as gelatin, casein, and isinglass, is sometimes used to fine, or clarify, these beverages. Since fining agents are filtered out and treated as processing aids, a wine or beer that appears free of animal ingredients may still have been produced with albumin. Products explicitly labeled vegan are the most reliable way to avoid it in these categories.
Frequently asked questions
No, albumin in its standard commercial forms is not vegan. It is an animal protein derived from egg whites, animal blood serum, or milk. Plant-based substitutes such as aquafaba exist, but the ingredient labeled albumin itself is animal-derived.
Albumin most commonly comes from egg whites, where it is called ovalbumin. It can also be recovered from the blood serum of slaughtered animals or from milk. All three sources are animal-derived.
It can be. Albumin is sometimes used as a fining agent to clarify beer and wine, alongside other animal-derived agents like gelatin and isinglass. Because it is filtered out and treated as a processing aid, it often does not appear on the label, so choosing products marked vegan is the most reliable way to avoid it.
Not necessarily. Egg-free only confirms the absence of egg-derived albumin. A product could still contain albumin sourced from animal blood or milk, so an egg-free claim alone does not guarantee it is free of all albumin.
Aquafaba, the liquid from canned chickpeas, is the closest vegan substitute for albumin's foaming ability and works well in meringues and mousses. For binding, ground flaxseed or chia gel and commercial egg replacers are effective. The best option depends on whether you need foaming or binding.