Is it vegan? Additives & E-numbers E270

Is lactic acid vegan?

Usually vegan

Quick answer: Usually. Despite its name, lactic acid (E270) is normally made by fermenting plant sugars, not from milk, so it is generally vegan.

Also called: E270, lactate, sodium lactate (E325), calcium lactate (E327)

The details

Lactic acid is an acid produced by fermentation and used as an acidity regulator and preservative. The Vegetarian Resource Group reports that lactic acid made in the US is produced without whey as the fermentation medium, while the source of imported lactic acid may be unknown.

Lactic acid is not the same as lactose (milk sugar) and is not a dairy allergen.

What to look for on the label

  • E270
  • lactic acid
  • lactates (E325–E327)

Where it’s found

  • Vegan cheeses and dips
  • Sauces, pickles and confectionery
  • Sourdough and fermented foods

Frequently asked questions

Is lactic acid vegan?

Usually. Despite its name, lactic acid (E270) is normally made by fermenting plant sugars, not from milk, so it is generally vegan.

Sources

  1. Approved additives and E numbers — Food Standards Agency (UK)
  2. Ingredient questions and answers — The Vegetarian Resource Group

Checked on 31 October 2026. Ingredients and recipes change, and the same product can differ between countries — always check the current label. This page is general information, not allergy or medical advice.

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