Is Lactic Acid Safe?
Lactic Acid is the additive E270 — an acid produced by fermentation and used to preserve and flavour foods — usually vegan, despite the name.
Is Lactic Acid safe to eat?
E270 is considered safe. It is authorised across the EU, UK and US, and safety evaluations by the European Food Safety Authority (EFSA) have not identified health concerns at the levels used in food. For most people there is no reason to avoid E270.
EFSA status: Authorised in the EU — no safety concern at current levels of use
Source: European Food Safety Authority
What is Lactic Acid?
E270 is the E-number for lactic acid, one of the preservatives group of food additives (E200–E299). Additives in this group prevent spoilage by stopping the growth of bacteria, moulds and yeasts. Produced by fermenting sugars — usually from plants, though the fermentation medium can involve dairy. Despite its name, lactic acid in food additives is almost always made by fermenting plant sugars such as beet or corn — not from milk. The name comes from where it was first discovered, not where it is made today. Like every E-number, E270 has been evaluated and authorised for use in food in the European Union — the 'E' literally stands for Europe, and a number is only granted after a safety assessment. That authorisation doesn't mean every additive suits every diet or that all concerns are settled, which is why we break down the safety, vegan, vegetarian and halal status of E270 in detail below.
What foods contain Lactic Acid?
E270 (Lactic Acid) is typically found in:
- Yoghurt and fermented foods
- Sourdough bread
- Salad dressings
- Olives
- Confectionery
Frequently Asked Questions
Is Lactic Acid bad for you?
Yes. E270 is authorised in the EU, UK and US, and EFSA evaluations found no health concern at normal food levels.
Is Lactic Acid vegan?
E270 is uncertain for vegans — it is produced by fermenting sugars — usually from plants, though the fermentation medium can involve dairy, and the label doesn't reveal the source. Look for a vegan certification or ask the manufacturer.
Is Lactic Acid halal?
E270 is halal. Produced by fermenting sugars — usually from plants, though the fermentation medium can involve dairy, with no haram source involved.
Full guide to E270 (Lactic Acid) →
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Additive data sourced from Open Food Facts (ODbL licence) and the European Food Safety Authority (EFSA).