INGREDIENTS Water Csen Palm Cen Emulifer Coosters

What it is. The potassium salt of sorbic acid, which stops mould and yeast growth.

Why it is used. Used in cheese, baked goods, dried fruit, wine and dressings.

What the evidence says. Widely used and long regarded as one of the gentler preservatives. EFSA's 2015 re-evaluation lowered the acceptable daily intake and noted gaps in the genotoxicity data, asking for more work, while finding no evidence of harm at the levels actually used.

Permitted with maximum levels. EFSA has asked for further data rather than restricted it.

Assessed against EFSA. Full entry for E202

What it is. A gel forming fibre extracted from red seaweed.

Why it is used. Thickens dairy, plant milks, desserts and some processed meats.

What the evidence says. Food grade carrageenan is permitted. A degraded form called poligeenan is harmful, but that is not what goes into food. Some lab and animal work links carrageenan to gut inflammation, which keeps it under review, but human evidence is limited and mixed.

Permitted, including in organic food in many places, though a few specialist products avoid it as a precaution.

Assessed against EFSA, JECFA. Full entry for E407

What it is. A synthetic emulsifier that keeps oil and water mixed and smooth.

Why it is used. Used in ice cream, sauces and some bakery products.

What the evidence says. Part of a wider research question about whether certain emulsifiers disturb the gut lining and microbiome. Most of the evidence so far is from mice and lab models, not people, so it is an active area rather than a settled concern.

Permitted with limits.

Assessed against EFSA. Full entry for E433

What it is. Fat derived emulsifiers, closely related to ordinary dietary fats.

Why it is used. One of the most used additives in food: bread, margarine, ice cream, cakes and sauces.

What the evidence says. The body handles these much as it handles other fats, and EFSA's re-evaluation raised no safety concern at the levels used. They sit in the same broad emulsifier and gut microbiome research question as the others, which remains unsettled.

Permitted without a numerical limit. The fat source is not always stated, which matters for some diets rather than for safety.

Assessed against EFSA. Full entry for E471

What it is. A mild acid found naturally in citrus fruit, made commercially by fermentation.

Why it is used. Adds tartness, balances flavour and helps preserve. One of the most used additives in food.

What the evidence says. Safe at food levels. No credible health concern for the additive itself.

Permitted freely.

Assessed against EFSA, JECFA. Full entry for E330

What it is. A fibre made by fermenting sugars with a bacterium, which thickens liquids at very low doses.

Why it is used. Thickens sauces and dressings and gives structure to gluten free baking.

What the evidence says. Passes through largely undigested and is treated as safe by regulators, with no numerical intake limit. Very large amounts act as fibre does, which is a digestive effect rather than a safety one.

Permitted freely.

Assessed against EFSA, JECFA. Full entry for E415

What it is. The sodium salt of glutamate, an amino acid found naturally in tomatoes, cheese and mushrooms.

Why it is used. Boosts savoury, umami flavour in stocks, crisps, ready meals and sauces.

What the evidence says. The old idea of MSG causing headaches and flushing, once called Chinese restaurant syndrome, has not held up in controlled trials. Regulators worldwide treat it as safe at normal intake. A genuinely useful example of a feared additive that the evidence exonerates.

Permitted and classed as safe. Adds to total sodium, so it counts towards salt if a product uses a lot.

Assessed against EFSA, JECFA, US FDA. Full entry for E621