If you’ve ever stared at a packet reading E322, E621, E150d and thought “is this food or a postcode?”, you’re not alone. Google Search data shows people hunt for “e numbers”, “e numbers in food”, and “list of e numbers” constantly — then bounce off walls of dense tables written for auditors.
Here’s a plain walk-through. I’m not a toxicologist; I’m someone who built an ingredient scanner (Vital Scan) because memorising hundreds of codes is a terrible hobby.
What does the “E” stand for?
Europe. E-numbers are the EU’s official catalogue for approved food additives. The UK still uses them widely on labels too. Other regions write the full chemical name or a different ID system — same chemicals, different paperwork.
Rough map of the ranges
- E100–E199 — colours
- E200–E299 — preservatives
- E300–E399 — antioxidants, acidity regulators
- E400–E499 — thickeners, emulsifiers, stabilisers
- E500–E599 — acids, bases, anti-caking
- E600–E699 — flavour enhancers
- E900+ — sweeteners, glazing agents, gases, etc.
Numbers alone don’t tell you “healthy vs unhealthy”. Context does.
Usually nothing to freak about
- E300 — ascorbic acid (vitamin C)
- E330 — citric acid (citrus / fermentation; everywhere)
- E322 — lecithin (often soy or sunflower)
- E440 — pectin (fruit-based gelling)
- E500 — sodium carbonates (baking soda family)
- E406 — agar (seaweed gelling agent)
Worth a second look (depends on goals)
- E102, E110, E122, E124, E129 — synthetic colours; restricted or labelled more carefully in some places after research on kids’ behaviour
- E211 — sodium benzoate (soft drinks; watch combos with vitamin C if you’re pedantic)
- E249–E252 — nitrites/nitrates in cured meats
- E320 / E321 — BHA / BHT
- E621 — MSG; fine for most, headache trigger for some
- E950–E955-ish sweeteners — aspartame, sucralose & friends; hotly debated, legally approved in set doses
Vegan E-numbers (quick note)
People also search “vegan e numbers” a lot. Lecithin can be egg or soy. Shellac (E904) is insect-derived. Some colourants historically used animal sources — modern supply varies. When in doubt, check the full name or scan with a tool that flags diet preferences.
A better use of your brain than flashcards
You will never need the full official catalogue in a Monday shop. You need:
- Is the product mostly short ingredients you recognise?
- Any dyes / nitrites / hydrogenated fats relevant to your house rules?
- Sugar load and salt if those matter for you (diabetes, blood pressure, etc.)
Vital Scan reads the label and surfaces codes + risk language without the spreadsheet mood. Pair that with the additives-to-avoid notes if you’re building house rules.
Last point: Approved ≠ “good for you in unlimited amounts”. Approved means regulators set an acceptable daily intake under normal use. Portion sizes still win.