Nisin
Learn what Nisin (E234) is, why it's added to food, whether it's safe, and which products contain it.
Low concernWhat is Nisin?
A food additive from the category of natural preservatives. It is an antibiotic active against harmful Gram-positive bacteria. It is produced by the bacterium Lactococcus lactis, which is commonly used in cheese making.
Why is Nisin added to food?
Nisin (E234) is a preservative commonly found in: Cheeses, puddings.
Permitted quantity: The maximum daily intake for human consumption is up to 0.3 mg/kg body weight.
Is Nisin safe?
Low concern
No secondary effects reported.
Is Nisin banned anywhere?
✓ Not currently banned in the EU or known to be restricted in other countries.
Common foods that contain Nisin
- Cheeses
- puddings
How to spot Nisin on labels
Look for any of these names in the ingredients list:
- E234
- Nisin
Common misspellings to watch for:
- nisln
- ni$in
- nlsin
- nisin
Better alternatives
• People with sensitivity or allergy to dairy proteins may experience adverse reactions to nisin. • Excessive use may affect the balance of intestinal microflora and cause digestive discomfort. • People with severe kidney conditions or immune system issues should consult a doctor before use. • Nisin use is not recommended for pregnant or breastfeeding women without medical advice.
Also known as
- nisln
- ni$in
- nlsin
- nisin
Scan products with BioBrief
Not sure if a product contains Nisin? BioBrief scans the barcode and instantly shows you every additive in the ingredients list — including E234 — with a plain-language explanation.
Frequently asked questions about Nisin
- Is Nisin safe to eat?
- No secondary effects reported.
- Is Nisin banned anywhere?
- Nisin is not currently banned in the EU or known to be restricted in other countries.
- How do I spot Nisin on a food label?
- Look for E234, Nisin in the ingredients list. It may also appear as: nisln, ni$in, nlsin.
Ingredients change. Always check the actual product label before purchasing. Information on this page is for educational purposes only.