E-numbers, hidden animal ingredients, and how to spot them in 10 seconds.
7 min read
Reading food labels is a skill every vegan develops quickly. Here's how to spot hidden animal ingredients in 10 seconds — and the sneaky E-numbers to watch for.
When picking up a packaged product, scan the ingredients list in this order:
Derived from boiled animal bones, skin, and cartilage. Found in: marshmallows, gummy sweets, some yogurts, jelly, some ice creams, vitamins (often in capsule shells), and wine/beer (as a fining agent).
Red dye made from crushed cochineal insects. Found in: red-coloured sweets, juices, yogurts, strawberry flavoured products. Look for "E120", "carmine", "cochineal", or "natural red 4."
Resinous secretion from lac bugs. Used as a glaze on: certain chocolates (e.g. Smarties), citrus fruits, some vitamins.
Fish bladder used to clarify beer and wine. Not always declared on labels — use Barnivore (barnivore.com) to check if your beer or wine is vegan.
Milk proteins, found in many processed foods including some "non-dairy" products (a common and misleading label).
Milk sugar, found in many processed foods, medications, and some crisps/chips.
Can be plant or animal-derived. Most manufacturers use plant-derived glycerol, but it's worth checking with the manufacturer if you want certainty.
⚠️ The 'may contain' trap
Here are the E-numbers most commonly associated with animal products:
Not sure about a specific ingredient? Use our checker below:
Ingredient checker
Use apps like Is It Vegan? or Vegan Scanner to check ingredients by barcode. For E-numbers, refer to the list above.
Wine and beer are sometimes fined (clarified) using animal-derived agents: isinglass (fish bladder), casein (milk protein), egg whites, or gelatin. These are not always declared on labels. Use barnivore.com to check whether a specific brand is vegan. Most spirits are vegan. Most ciders are vegan. Beer and wine are the main concern.
Many medications and supplements use gelatin capsules, lactose as a filler, or shellac as a coating. For prescription medications, the health need generally outweighs the animal ingredient concern — discuss alternatives with your GP if important to you. For supplements, most brands now offer vegan capsule options.
💡 When in doubt