Supermarket aisle of chocolate, sweets and biscuits where additive numbers appear on every pack

INS Numbers Explained: The E-Number System Under Another Name

7 min read

If you shop in India, Australia, Malaysia, Singapore, Indonesia or the Gulf, your ingredient labels do not say E471. They say INS 471. Same additive, same halal question, different prefix.

That difference is worth ten minutes of your time, because it is the single most common reason a shopper thinks an additive is unfamiliar when they have read about it a hundred times.

What INS Actually Stands For

INS is the International Numbering System for Food Additives. It comes from the Codex Alimentarius Commission, the joint standards body of the Food and Agriculture Organization and the World Health Organization, and it is set out in Codex guideline CXG 36-1989, “Class Names and the International Numbering System for Food Additives”.

Codex assigns a number to every additive it recognises. The number is an identifier, nothing more. It says which substance is in the packet. It does not say the substance was approved, and it certainly does not say where the substance came from.

Then What Is the E For?

The E stands for Europe. An E-number is an INS number that carries an extra piece of information: that the additive is approved for use in the European Union.

So the two systems are not rivals. E-numbers are a subset of the Codex numbering with an EU approval stamp attached. Strip the E and you have the Codex number underneath.

This produces three consequences you can see on a shelf:

  • The digits match. INS 471 is E471. INS 322 is E322. INS 150a is E150a. The suffix letters carry across too.
  • Some INS numbers have no E equivalent, because Codex recognises an additive the EU has not approved. INS 384, isopropyl citrates, is one such case.
  • A few additives are permitted in one place and not the other, so an Indian or Australian label can legitimately show a number you will never see in Britain.

Which Countries Use Which

RegionSystem on the labelRegulator
European Union, United KingdomE-numbersEFSA, FSA
IndiaINS numbersFSSAI
Australia, New ZealandINS numbersFSANZ
MalaysiaINS numbersMinistry of Health, with JAKIM on halal
SingaporeINS numbersSFA
IndonesiaINS numbersBPOM, with BPJPH on halal
Saudi Arabia, UAE and the wider GulfINS numbersSFDA, MOIAT
United StatesNames, not numbersFDA

The American case is the odd one out and catches people travelling in the other direction. A US label does not use either system. It writes the substance out: “mono- and diglycerides” rather than E471 or INS 471.

How an Indian Label Reads

India’s FSS (Labelling and Display) Regulations 2020 require a food additive to be declared by its functional class together with either its specific name or its INS number. That is why Indian packets read the way they do:

  • Emulsifier (INS 471)
  • Preservative (INS 211)
  • Colour (INS 102)
  • Sweetener (INS 951)
  • Acidity Regulator (INS 330)

The functional class in brackets is genuinely useful, and more informative than a bare E-number. “Emulsifier (INS 471)” tells you both what the substance does and which substance it is. A British label saying just “E471” gives you only the second half.

The Halal Part, Which Does Not Change

Here is the thing to take away: switching label systems changes nothing about the ruling.

The halal status of an additive depends on what it is made from. INS 471 and E471 are the same mono- and diglycerides, built from the same fats, carrying the same unanswered question about whether those fats were plant or animal. Reading it as an INS number does not make it safer, and does not make it worse.

Some numbers are settled in either system:

  • INS 441 / E441 is gelatine. Animal-derived, and the species is almost never declared.
  • INS 120 / E120 is cochineal or carmine. Insect-derived.
  • INS 542 / E542 is bone phosphate. Animal-derived by definition.
  • INS 920 / E920 is L-cysteine, which can be derived from feathers or hair.

Others depend entirely on the source and cannot be resolved from the label:

  • INS 471 / E471, mono- and diglycerides of fatty acids
  • INS 422 / E422, glycerol
  • INS 472e / E472e, the DATEM family
  • INS 481 / E481, sodium stearoyl lactylate

Our E-codes database and our INS code database hold the same additives with the same verdicts, cross-referenced both ways, so you can search from whichever number is printed on the packet in front of you.

One Advantage INS Markets Have

There is a genuine upside to shopping in an INS market, and it has nothing to do with the numbers.

India, Malaysia, Indonesia, Singapore and the Gulf states all have established halal certification infrastructure. JAKIM in Malaysia, BPJPH in Indonesia, SFDA in Saudi Arabia and MOIAT in the UAE all certify at national level. So while the additive number gives you no more information than an E-number would, the packet next to it is far more likely to carry a certificate that resolves the question outright.

In an EU or UK supermarket you are usually reasoning from an ingredient list. In Kuala Lumpur or Jakarta you can often just look for the mark.

The Three-Step Check for Any INS Number

  1. Drop the prefix and read the digits. INS 471 becomes 471. Anything you have ever read about E471 applies.
  2. Decide whether the number is settled or source-dependent. Gelatine, carmine and bone phosphate are settled. Emulsifiers and glycerol are not.
  3. For a source-dependent number, look for something other than the number. A halal certificate, a vegetarian or vegan declaration, or a manufacturer statement. The digits will never answer it, in either system.

Summary

QuestionAnswer
What is INS?The Codex Alimentarius International Numbering System, guideline CXG 36-1989
What is the E for?Europe. An E-number is a Codex number with EU approval attached
Is INS 471 the same as E471?Yes, identical additive and identical halal question
Where are INS numbers used?India, Australia, New Zealand, Malaysia, Singapore, Indonesia, the Gulf
Does the system change the ruling?No. The source of the additive decides, not the prefix
Can a number ever prove halal status?Only where the substance is inherently animal or inherently synthetic

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