Foods Containing E641 (L-Leucine)
E641 (L-Leucine) is a flavour enhancer (fermentation or animal) used in crisps and snack foods, instant noodles. Here are the foods where you'll find it on the label.
Common foods that contain E641
- crisps and snack foods
- instant noodles
- soups
- sauces
- processed meats
- ready meals
In the UK and EU, E641 must be declared either as "E641" or as "L-Leucine" in the ingredients list.
Is E641 safe?
EFSA has reviewed E641 and considers it safe for human consumption at the levels used in food. No credible evidence links L-Leucine to harm at normal dietary intakes.
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Reduce or replace E641
Products relevant to E641 and your dietary choices
MSG-Free Seasoning
Natural umami seasonings — yeast flakes, seaweed, herbs — without E6xx.
Natural Flavour Blends
Stock, seasoning blends and umami without synthetic enhancers.
Food Sensitivity Test
Check which flavour enhancers or additives are affecting you.
Data: Open Food Facts (ODbL) · EFSA