Printed on the pack as "E471" or by their German name.
Gelatine / Speisegelatine
In Germany usually from pork unless it says Rindergelatine, Fischgelatine or Halal-Gelatine. It has no E-number because it counts as a food (formerly E441).
Found in: Gummy sweets, yoghurt, cream, chilled cakes, capsules
Karmin / Echtes Karmin / Cochenille
A red dye made from cochineal insects.
Found in: Red drinks, sweets, fruit yoghurt, sausages
Glycerin
Can come from plant oils or animal fat.
Found in: Sweets, chewing gum, baked goods
Salze der Speisefettsäuren
From plant or animal fats.
Found in: Processed foods, supplements
Magnesiumsalze der Speisefettsäuren
From plant or animal fats.
Found in: Tablets, spices
Mono- und Diglyceride von Speisefettsäuren
One of the most common emulsifiers. Can be made from pork fat or plant oils. If it does not say "pflanzlich", check.
Found in: Packaged bread, ice cream, chocolate, cakes, margarine
Ester von Mono- und Diglyceriden
Derived from E471, so the fat source can be animal.
Found in: Baked goods, creams, sweets
Zuckerester / Polyglycerinester
Built on fatty acids that can be animal.
Found in: Sweets, whipped toppings, baked goods
Stearoyllactylate / Stearyltartrat
Built on stearic acid, which can be animal.
Found in: Bread, toast, doughs
Sorbitanester
Built on fatty acids that can be animal.
Found in: Dry yeast, coatings, sweets
Polysorbate
Built on fatty acids that can be animal.
Found in: Ice cream, sauces, sweets
Knochenphosphat
Extracted from animal bones.
Found in: Anti-caking agent in some foods
Fettsäuren / Stearinsäure
From plant or animal fats.
Found in: Chewing gum, sweets, tablets
Magnesiumstearat
Can be animal or plant-based.
Found in: Tablets, supplements, pressed sweets
Guanylat / Inosinat / Ribonukleotide
Usually made by fermentation, sometimes from meat or fish.
Found in: Crisps, instant soups, stock, seasonings
Schellack
A glaze secreted by the lac insect.
Found in: Glazing sweets, fruit and tablets
L-Cystein
A flour improver; can come from feathers or animal hair, or be synthetic.
Found in: Industrial bread and cakes
Lecithin
Usually from soy or sunflower (rarely from egg).
Found in: Chocolate, baked goods
Pektin
A plant gelling agent from apples and citrus.
Found in: Jams, vegan gummy sweets
Agar-Agar
A gelling agent from seaweed.
Found in: Vegan desserts, pudding
Carrageen
From red seaweed.
Found in: Flavoured milk, pudding, cream
Johannisbrotkernmehl / Guarkernmehl
Plant thickeners from seeds.
Found in: Ice cream, sauces, dairy
Bienenwachs
From bees; considered halal by most scholars.
Found in: Glazing sweets and fruit