Flavour Enhancers — Complete E-Number Guide
Flavour Enhancers are food additives (mainly numbered E600–E699) that intensify existing flavours. Found in crisps, instant noodles, soups, sauces and processed snacks. Every additive below links to its full safety, vegan and halal breakdown.
A handful of additives below carry E-numbers outside the E600–E699 band — they're grouped here because they do the same job in food, not because of their number; the EU/UK E-number system groups by main series but reassigns some additives by function.
| E-Number | Name | Safety | Vegan | Halal |
|---|---|---|---|---|
| E620 | Glutamic Acid | Safe | Yes | Halal |
| E621 | Monosodium Glutamate | Safe | Yes | Halal |
| E622 | Monopotassium Glutamate | Safe | Yes | Halal |
| E623 | Calcium Diglutamate | Safe | Yes | Halal |
| E624 | Monoammonium Glutamate | Safe | Yes | Halal |
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| E625 | Magnesium Diglutamate | Safe | Yes | Halal |
| E626 | Guanylic Acid | Safe | Uncertain | Mashbooh |
| E627 | Disodium Guanylate | Safe | Uncertain | Mashbooh |
| E628 | Dipotassium Guanylate | Safe | Uncertain | Mashbooh |
| E629 | Calcium Guanylate | Safe | Uncertain | Mashbooh |
| E630 | Inosinic Acid | Safe | Uncertain | Mashbooh |
| E631 | Disodium Inosinate | Safe | Uncertain | Haram |
| E632 | Dipotassium Inosinate | Safe | Uncertain | Haram |
| E633 | Calcium Inosinate | Safe | Uncertain | Mashbooh |
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| E634 | Calcium 5-Ribonucleotides | Safe | Uncertain | Mashbooh |
| E635 | Disodium 5-Ribonucleotides | Safe | Uncertain | Haram |
| E640 | Glycine and its Sodium Salt | Safe | Uncertain | Mashbooh |
| E641 | L-Leucine | Safe | Uncertain | Mashbooh |
| E650 | Zinc Acetate | Safe | Yes | Halal |
| E1505 | Triethyl Citrate | Safe | Yes | Halal |
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Products for flavour enhancers
Alternatives and resources related to flavour enhancers
MSG-Free Seasoning
Natural umami seasonings — yeast flakes, seaweed and herbs.
Natural Flavour Blends
Stock, seasoning blends and umami without synthetic enhancers.
Food Intolerance Test
Find out which additives are affecting you with a home test kit.
Data: Open Food Facts (ODbL) · EFSA