Are eggs vegan?

Eggs are an animal product by any reasonable definition, so the question is not really debated at the definitional level. The Vegan Society, who coined the word vegan in 1944, explicitly excludes eggs. The standard vegan definition is "a way of living which seeks to exclude, as far as is possible and practicable, all forms of exploitation of, and cruelty to, animals for food." Eggs come from hens, hens are animals, so eggs are out. Major vegan certifications (Vegan Society trademark, V-Label, Certified Vegan) all exclude eggs regardless of source.

The most common edge case is backyard or rescue eggs. Some people who otherwise eat plant-based include eggs from their own hens, or from rescued battery hens they have given a home to. The argument is that the hen is going to lay anyway, the eggs are not being sold, and the bird is well cared for. This is a personal ethical choice and some people are comfortable with it, but it is not vegan by the mainstream definition. Laying is also not a costless process for the hen. Modern laying breeds have been selected to produce roughly 300 eggs a year (wild junglefowl lay around 10-15), which depletes calcium and is linked to reproductive disease. Some rescue keepers feed the eggs back to the hens to return the nutrients.

Eggs hide in more products than people expect. Watch the label for: mayonnaise (the binder is egg yolk), traditional fresh pasta and egg noodles (durum-only dry pasta is usually fine), brioche, challah, most enriched breads, egg wash on pastries and pretzels, crème brûlée, custard, lemon curd, meringue, marshmallow fluff, nougat, traditional Caesar dressing, hollandaise, some protein bars and baked goods that list albumen, ovalbumin, or egg white powder, and lysozyme (E1105, an egg-derived enzyme sometimes used in cheese and wine). Lecithin is usually soy or sunflower but can rarely be egg-derived, so check if it matters. A few wines and beers historically use egg white (albumen) as a fining agent, though this is increasingly rare.

The industrial reality is worth knowing even if you eat eggs only occasionally. The global laying-hen industry kills every male chick within a day of hatching, because males do not lay eggs and the laying breeds are not the same as meat breeds, so the males have no commercial value. This is true for caged, cage-free, free-range, and organic operations. Hens themselves are slaughtered at 18-24 months once their laying rate drops, against a natural lifespan of 8-10 years. Cage-free and free-range improve welfare in measurable ways (space, perching, dust-bathing) but do not change the culling or end-of-lay slaughter. A handful of European producers now use in-ovo sexing to avoid the male cull, but it is a small share of the market.

For substitutes, match the function the egg is doing. For baking and binding: aquafaba (the brine from a can of chickpeas) whips like egg white, three tablespoons replaces one whole egg; a flax egg (one tablespoon ground flax plus three tablespoons water, rested five minutes) binds quick breads and cookies; commercial replacers like Bob's Red Mill Egg Replacer, OGGS aquafaba cartons, and Crackd work in most recipes. For scrambled eggs and omelettes: Just Egg (mung bean protein) scrambles and folds almost identically to real egg, silken tofu scrambles well with turmeric and kala namak (black salt, which has a sulphurous egg-like aroma), and a chickpea flour omelette is the cheapest classic. For meringue, aquafaba whipped with sugar and cream of tartar is genuinely indistinguishable. For richness in bakes: mashed banana, applesauce, or a chia egg.

One language note. Some vegetarians eat eggs and dairy (lacto-ovo vegetarian) and some eat eggs but not dairy (ovo-vegetarian). Vegans do not eat either. The term plant-based is ambiguous and depends on the speaker: a plant-based diet can mean strictly vegan, or it can mean "mostly plants but occasional eggs and dairy." If precision matters (a restaurant menu, a recipe blog, a product label), look for vegan specifically rather than plant-based.