Food Additive Checker
Search an E-number or additive name to see what it is derived from — and what to check on the packaging when the source is not stated.
What this tool tells you
Food additives are listed on packaging by an E-number that says nothing about what the substance is made from. This tool reports the derivation, the evidence behind it, and what you can do next. It does not issue rulings — where scholars differ, the difference is noted rather than decided.
Type an E-number or additive name. These are the ones people ask about most:
Reading the origin labels
These labels describe origin, not permissibility. “Varies by producer” means the source is undisclosed and worth checking — not that the product is impermissible.
Certification marks by region
Where an additive’s source is undisclosed, certification on the packaging is the practical answer — a certifying body has inspected the supply chain.
TaqwaTools does not certify products and is not affiliated with any of these organisations.
Where this information comes from
Derivation follows public regulatory specifications — principally EFSA additive specifications, the EU additive register, and the UK FSA approved additives list. Where an additive is made by more than one route, this is stated rather than resolved to one answer.
Manufacturers change suppliers and reformulate. Certification on the packaging remains the stronger check.
About E-numbers
E-numbers are codes assigned to food additives permitted for use in the European Union, and they appear on ingredient labels worldwide. They identify a function — colour, preservative, emulsifier — and say nothing about what the substance is made from. E140 is extracted from green plants; E441 is animal collagen. Nothing in the numbering distinguishes them.
That matters because several additives in common use are made from fats that can be either vegetable or animal in origin, including porcine, and the packaging is not required to say which. An emulsifier in bread or chocolate may be plant-based in one brand and not in another, with the same E-number on both.
This checker reports the derivation for each additive it covers, notes where a substance is genuinely made by more than one route, and points to the certification marks that resolve what a label cannot.
Frequently Asked Questions
Why does this tool not say whether an additive is halal? +
Because that is a ruling, and TaqwaTools does not issue rulings. What an additive is made from is a question of food science with one answer for everybody. Whether a given derivation is permissible is a question for scholars, and on several additives they differ. Reporting the derivation lets you apply the position you follow, rather than having one chosen for you.
Are E-numbers animal-derived? +
Most are not. The great majority of permitted additives are plant, mineral, microbial or synthetic in origin. A minority are made from fats that may be animal in origin, and a small number are always animal or insect-derived. The E-number itself tells you nothing either way, which is what makes a lookup useful.
What does "Varies by producer" mean? +
That the additive is manufactured by more than one route — commonly from vegetable oil in one factory and from animal fat in another — and the packaging does not say which was used. It is a statement about disclosure, not about permissibility. Certification on the pack is the practical way to resolve it.
What about E471? +
E471, mono- and diglycerides of fatty acids, is among the most widely used emulsifiers in packaged food and the most frequently asked about. It is made from glycerol and fatty acids, and both can come from vegetable oils or from animal fat including porcine tallow. The label does not state the source, so certification or a query to the manufacturer is the way to settle it.
What about gelatine? +
Gelatine is derived from animal collagen, obtained from bones and skin — most often bovine or porcine. Since it is always animal-derived, the questions that follow are which animal and how it was slaughtered. Both are matters for the manufacturer to confirm and for the position you follow to assess.
How reliable is this? +
The derivations follow public regulatory specifications and manufacturer disclosure, and where a substance is genuinely made by more than one route we say so instead of picking one. What it cannot tell you is which route a specific product used. Manufacturers change suppliers and reformulate, so certification on the packaging is always a stronger check than a general reference.