Is E621 (Monosodium glutamate (MSG)) Halal?
Generally halal
E621 (Monosodium glutamate / MSG) is made by fermenting plant starches or molasses and is widely accepted as halal; a strict check would confirm the fermentation medium.
What is E621?
Monosodium glutamate is the sodium salt of glutamic acid, used to add a savoury 'umami' taste. Modern MSG is produced by fermenting plant-based carbohydrates such as starch, sugar beet or molasses — a process similar to making vinegar or yoghurt.
Produced by bacterial fermentation of plant sugars/starches to glutamic acid, which is then neutralised with sodium to form MSG. The process is plant- and microbe-based.
Why is it generally halal?
MSG is widely accepted as halal because it is produced by fermentation of plant-based materials and is not animal-derived. A small number of strict bodies ask about the fermentation medium and any processing aids; for full certainty, look for halal certification. The additive itself contains no prohibited component.
Commonly found in
It may be found in — this does not mean every product below contains it.
- Savoury snacks and crisps
- Instant noodles and stock cubes
- Seasonings and sauces
- Ready meals and soups
How it appears on labels
Monosodium glutamateMSGE621Flavour enhancer (E621)INS number: 621
How to verify a product in Singapore
- Ingredient-level guidance is not halal certification — check the complete product, not just this ingredient.
- Look for recognised halal certification, and check the finished product on the official MUIS HalalSG register.
- When the source or processing aids are unclear, contact the manufacturer.
Ingredient guidance is not certification. Verify the finished product on the MUIS HalalSG register or with the manufacturer.
Check MUIS HalalSGSources: EFSA, FAO/WHO, MUIS · Last reviewed: July 2026 · This guidance is not certification.
Health & regulatory information
Halal does not automatically mean healthy, and a health concern does not automatically make an ingredient haram.
Health & safety
Halal does not automatically mean healthy. MSG is classified as generally safe by food-safety authorities; some people report short-term sensitivity, which has not been consistently reproduced in controlled studies. This is a food-safety topic, separate from halal status.
Frequently asked questions
Is E621 (MSG) halal?
Yes — MSG is made by fermenting plant-based materials and is widely accepted as halal. A strict check would confirm the fermentation medium.
Is MSG made from animals?
No. Modern MSG is produced by fermentation of plant sugars/starches.
What foods may contain MSG?
Savoury snacks, instant noodles, stock cubes, seasonings and ready meals may contain it. 'May contain' is not 'always contains'.
What names should I look for?
'Monosodium glutamate', 'MSG' or 'E621'.
Related ingredients
Sources & methodology
- Re-evaluation of glutamic acid and glutamates (E 620–625) — European Food Safety Authority (EFSA) · Fermentation origin and safety re-evaluation
- General Standard for Food Additives (GSFA) Online Database — Codex Alimentarius (FAO/WHO) · INS 621 and approved uses
- Halal Certification — HalalSG — Majlis Ugama Islam Singapura (MUIS) · Fermentation medium assessed during certification
Humble Halal methodology: we classify additives by their common origin, not by any specific product. A generally-halal ingredient does not make a finished product halal-certified. This page is general guidance, not certification or religious/legal advice — always verify the complete product. Last reviewed July 2026.