What is E251? Sodium Nitrate Explained
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E251 is Sodium Nitrate — a preservative (synthetic; cured meats) used in bread and baked goods, wine and cider.
What is E251 (Sodium Nitrate)?
E251 is Sodium Nitrate, a food additive classified as a preservative that extend shelf life by preventing microbial growth. A preservative (synthetic; cured meats) used in bread and baked goods, wine and cider. You'll find it in bread and baked goods, wine and cider, cured meats and many other packaged foods. Like every E-number, E251 has been authorised for use in food following an EFSA safety evaluation — though authorisation doesn't mean concern-free, as the safety section below explains.
Where is E251 found?
E251 (Sodium Nitrate) is found in bread and baked goods, wine and cider, cured meats, cheese, pickles and condiments, soft drinks.
- bread and baked goods
- wine and cider
- cured meats
- cheese
- pickles and condiments
- soft drinks
Also known as: Sodium Nitrate
Is E251 safe?
E251 is authorised in the EU and UK but carries genuine concerns. as a nitrite/nitrate used in cured meats, E251 is one reason the NHS advises limiting processed meat during pregnancy. For most people consuming Sodium Nitrate in typical quantities, health effects are unlikely — but the caution flag reflects either active scientific debate, mandatory warning labels, allergen status, or conditions attached to its authorisation.
EFSA opinion: Sodium Nitrate — status Some concerns.
Check the calorie content of foods containing E251. If you’re pregnant, see our pregnancy food safety guide. Taking supplements? Check drug and supplement interactions.
Cleaner alternatives to E251
79% protein clean-label snack
MORiSH Pork Chicharrónes
Prefer snacks with no artificial colours, preservatives or sweeteners? MORiSH pork chicharrónes are 79% protein, zero carbs and have a short, readable ingredient list.
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E251 FAQs
What is E251 in food?
E251 is Sodium Nitrate — a preservative (synthetic; cured meats) used in bread and baked goods, wine and cider.
Is E251 safe to eat?
E251 is authorised in the EU and UK but carries genuine concerns. as a nitrite/nitrate used in cured meats, E251 is one reason the NHS advises limiting processed meat during pregnancy. For most people
Is E251 vegan?
E251 (Sodium Nitrate) is vegan. It is derived from synthetic; cured meats, with no animal involvement in standard food production.
Is E251 halal?
E251 (Sodium Nitrate) is halal. It is derived from synthetic; cured meats, which involves no haram sources.
Related Preservatives additives
Also check: safe for cats? · safe for dogs? · calorie checker · medication interactions
Data: Open Food Facts (ODbL) · EFSA