Is E621 (Monosodium Glutamate, or MSG) halal or haram?

This guide simplifies it in plain language, with proven facts, Islamic arguments, and tips you can apply before purchasing any item or eating one that contains E621.

What Is E621 (Monosodium Glutamate)?

What Is E621 (Monosodium Glutamate)

E621 is the name of Monosodium Glutamate (MSG), a flavour enhancer commonly added to soups, snacks, sauces, frozen food, and ready-to-eat products, among other things.

Why the Halal Status Can Vary

1. The Source of E621

  • Plant-based fermentation: MSG is primarily produced today by fermenting plant sugars (e.g., sugar cane, beets, corn) using microbes; thus, it is not animal-derived and is halal in principle.

  • If these are from non-halal animals or involve non-halal slaughter, 

2. Contamination Risk

Even when plant ingredients are used, cross-contamination during processing with haram substances may compromise the halal status.

👉 Key point: E621 itself is not inherently halal or haram — its ruling is based on origin and process.

What Islamic Scholars and Authorities Say

Scholarly Islamic Perspective

Islamic jurisprudence teaches that:

  • If it comes from something haram, it is considered haram unless a real chemical transformation (istihalah) has occurred.

According to research published in the Journal of Islamic and Religious Studies, MSG, originally derived from natural sources, may be acceptable when processed properly.

Fatwas & Certification Bodies

Several halal authorities consider plant-based MSG generally halal:

  • Other halal certification agencies (IFANCA, HFA, JAKIM, MUI) also permit MSG, provided that its origin and production are certified as halal.

When E621 Is Clearly Halal

When E621 Is Clearly Halal

E621 can be confidently considered halal when:
✅ The product has trusted halal certification (e.g., IFANCA, JAKIM, MUI)
✅ The manufacturer states it is produced from plant-based or synthetic sources
✅ There is no evidence of animal-derived enzymes or processing contamination

Many supermarket products worldwide that contain MSG are halal because they meet these criteria.

When E621 Can Be Haram or Doubtful

E621 becomes haram or doubtful when:
⚠ It is produced using animal-derived enzymes without halal slaughter
⚠ The manufacturer cannot clarify the source
⚠ There is no halal certification, and the origin is ambiguous

In Dutch halal food analyses, products with questionable additives—such as certain flavour enhancers alongside E621—are labelled mushbooh (questionable), indicating caution.

Practical Steps to Verify Halal MSG

Practical Steps to Verify Halal MSG

Here’s how Muslims can confidently determine the status of E621:

1. Look for a Halal Logo

2. Read Labels Carefully

3. Contact the Manufacturer

4. Use Halal Ingredient Apps

Health and Moderation Perspective