Some of the trickiest non-vegan ingredients do not sound like they come from an animal at all. Carmine, a common red food coloring, is made from crushed insects. Shellac, used to give candy a shiny coating, comes from a resin secreted by beetles. L-cysteine, sometimes used in baked goods, can be derived from duck feathers or human hair. None of these names give any hint of their source, which is exactly why checking a food's vegan status takes more than a quick glance at the label.
Why Vegan Ingredients Are Easy to Miss
Food manufacturers use scientific or technical names for many additives, and these names rarely reveal whether the ingredient came from a plant, an animal, or an insect. A shopper without a background in food science has almost no way of knowing that "E120" is carmine, or that "E904" is shellac, without looking it up separately for every single ingredient on every single product.
Common Non-Vegan Ingredients Hiding in Plain Sight
Here are some of the ingredients most likely to catch even careful vegan shoppers off guard:
- Carmine (E120), a red coloring made from crushed cochineal insects, used in some candies, drinks, and baked goods.
- Shellac (E904), an insect-derived resin used as a glazing agent on candies and some fruits.
- Gelatin, made from animal collagen, found in gummies, marshmallows, and some capsules.
- Whey and casein, milk-derived proteins used in many processed foods, including some "plant-based" labeled snacks.
- L-cysteine, an amino acid sometimes derived from animal sources and used in certain bread and dough products.
- Honey, excluded from most vegan diets since it is produced by bees.
Because these ingredients often appear in small quantities as functional additives rather than main components, they are easy to overlook even when reading an ingredient list carefully.
Why "Plant-Based" Labeling Can Be Misleading
The term "plant-based" is not strictly regulated in most markets, which means it can be used more loosely than shoppers expect. A product marketed this way can still contain small amounts of dairy derivatives, egg-based additives, or insect-derived colorings, particularly if it was not specifically formulated with strict vegan standards in mind. Relying on front-of-package language alone leaves room for surprises that a full ingredient check would catch.
How an AI Ingredient Scanner Checks for Vegan Compliance
Rather than researching each unfamiliar ingredient name individually, an AI food scanner automates the entire process:
- Scan the product's barcode or ingredient label with your phone camera.
- The AI reads and extracts every ingredient listed on the packaging.
- Each ingredient is cross-referenced against a database of known animal-derived and insect-derived substances.
- You receive a clear vegan or not vegan result, along with the specific ingredient responsible for any issue.
Food Check AI checks against a reference database covering hundreds of animal-derived ingredients, including obscure E-numbers and scientific names, so you get a reliable answer without needing to recognize every technical term yourself.
Vegan vs. Vegetarian: A Quick Distinction
Vegetarian diets typically exclude meat and fish but often allow dairy, eggs, and honey. Vegan diets exclude all of these along with any other animal-derived ingredient, including insect-based colorings and animal-derived processing aids. A product can pass a vegetarian check while still failing a vegan check, which is why it matters to confirm which specific diet you are checking a product against.
Related reading: Vegan Kitchen Essentials For Beginners | How to Go Vegan Beginner's Guide
Make Confident Choices at the Shelf
You should not need a food science degree to shop according to your values. A quick scan turns a long list of unfamiliar ingredient names into a clear, trustworthy answer in the time it takes to read the label yourself.
Check Any Product's Vegan Status in Seconds
Use Food Check AI to scan ingredient labels and instantly see whether a product is vegan, along with a full breakdown of any animal-derived ingredients found.
