Natto
What is Natto?
Natto is a traditional Japanese food made from fermented soybeans. It is produced by steaming soybeans and then fermenting them with Bacillus subtilis var. natto, a specific strain of bacteria. This fermentation process gives natto its characteristic sticky, stringy texture and strong aroma.
Is Natto vegan?
Natto is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is Natto a major allergen?
Natto is derived from soya beans, which are one of the 14 major allergens that must be emphasised on UK food labels.
What is Natto used for?
Natto is primarily consumed as a breakfast food in Japan, often served with rice.
Is Natto safe?
Natto is not typically classified as a food additive in the UK and therefore does not have an E-number or require authorisation on the Register of Food Additive Authorisations.
Why it's used
Natto is primarily consumed as a breakfast food in Japan, often served with rice. In the UK, it is most commonly found in dietary supplements, vitamins, and specialised fermented food products. Manufacturers may include it for its perceived nutritional benefits and unique fermented flavour profile.
Health notes
Natto is not typically classified as a food additive in the UK and therefore does not have an E-number or require authorisation on the Register of Food Additive Authorisations. It is a source of vitamin K2, fibre, and protein. Some research suggests potential benefits for bone and cardiovascular health, though more peer-reviewed evidence is needed. Evidence regarding its health effects is still developing.
Allergen info
Natto is derived from soya beans, which are one of the 14 major allergens that must be emphasised on UK food labels. Therefore, products containing natto must declare its presence.
Foods that contain Natto
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