Is Phosphoric Acid Safe?
Phosphoric Acid is the additive E338 — a mineral acid produced from phosphate rock, used as a antioxidant to help stop fats and oils turning rancid and protect food colour and flavour.
Is Phosphoric Acid safe to eat?
E338 is approved for use in the EU, UK and US at regulated levels, but some concerns or conditions apply. EFSA's 2019 re-evaluation of phosphates found that total phosphate intake exceeds the safe level for some children and teenagers with diets high in processed food. For most people, normal dietary exposure to E338 is not considered harmful.
EFSA status: Authorised in the EU — acceptable daily intake (ADI) or conditions of use apply
Source: European Food Safety Authority
What is Phosphoric Acid?
E338 is the E-number for phosphoric acid, one of the antioxidants group of food additives (E300–E399). Additives in this group stop fats and oils turning rancid and protect food colour and flavour. A mineral acid produced from phosphate rock. Like every E-number, E338 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 E338 in detail below.
What foods contain Phosphoric Acid?
E338 (Phosphoric Acid) is typically found in:
- Oils
- Margarine
- Snacks
- Cured meats
- Soft drinks and processed foods
Frequently Asked Questions
Is Phosphoric Acid bad for you?
E338 is approved at regulated levels in the EU, UK and US, but some concerns exist — see the safety section above. Most people can consume it in normal amounts without harm.
Is Phosphoric Acid vegan?
E338 is vegan. A mineral acid produced from phosphate rock, with no animal involvement in standard production.
Is Phosphoric Acid halal?
E338 is halal. A mineral acid produced from phosphate rock, with no haram source involved.
Full guide to E338 (Phosphoric Acid) →
This section contains affiliate links. We may earn a small commission if you purchase through our links, at no extra cost to you.
Concerned about food additives?
Food Intolerance Test
Find out exactly which ingredients affect you with a home food intolerance test.
Additive data sourced from Open Food Facts (ODbL licence) and the European Food Safety Authority (EFSA).