Read It Before You Eat It: How to Decode Food Labels and Make the Healthiest Choice Every Time Food Additives, Nutrients, and Supplements A to Z

E234 is a food additive approved by the European Union (EU) and used as an antifungal preservative in food products.

The common name for E234 is nisin.

E234 is a polypeptide antibiotic, made of chains of 34 amino acids. This chemical is a primary metabolite as it is produced by fermentation, during the growth of the bacterium Lactococcus lactis. E234 can be obtained naturally (e.g. from milk), and is also chemically synthesised.

E234 is broken down in the small intestine to be used as a protein in the body. The recommended daily intake for nisin is approximately up to 80mg per kg of diet.

Examples of food and drink products that sometimes include E234:

  • beers
  • tomato paste
  • canned fruits
  • processed cheese products

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