E475 – Polyglycerol esters of fatty acids

Orange grain dots symbol for food additive with some concerns (E number classification – ORANGE level).

Quick analysis summary about E475 – Polyglycerol esters of fatty acids food additive

Bottom line about E475

E475 is graded ORANGE – SOME CONCERNS. Toxicology is mostly reassuring, but exposure uncertainty and 2026 Codex changes justify caution.

Why this grade for E475

JECFA’s conservative 2024 model exceeded its intake limit and Codex later tightened some provisions. The estimates may overstate real intake, so harm is not established.

Who may want to limit or avoid E475

Frequent consumers of several E475-containing processed foods may prefer to limit exposure while better real-use data are collected.

Common uses and where E475 appears

E475 may appear in fat emulsions, bakery products, confectionery, desserts, and toppings to help keep fat and water mixed and improve texture.

E475 source or origin

E475 has a variable source because its fatty acids can come from plant oils or animal fats.

Intake note for E475

JECFA retains an ADI (Acceptable Daily Intake) of 0–25 mg/kg body weight per day, while EFSA considered a numerical ADI unnecessary at reported EU uses. JECFA’s conservative 2024 model reached 537 mg/kg body weight per day but lacked real-use data.

Is E475 banned anywhere?

E475 remains authorised in the EU and permitted in the US. Codex reduced 19 provisions and revoked six in July 2026, but did not ban E475 generally.

Safety grading ORANGE – SOME CONCERNS

Toxicity findings are reassuring overall. The ORANGE grade reflects unresolved exposure estimates, Codex action, and an old, incomplete toxicology database rather than established harm at normal food-use levels.

Study basis or key toxicological reasoning for E475

Rats fed 2.5%, 5%, or 10% polyglycerol ester for 90 days showed no treatment-related effects on survival, growth, organ weights, blood measurements, or tissue examination. Fat absorption fell as the dietary concentration increased, and feed utilisation decreased in males at 10% [1]. EFSA treated the highest dose as a NOAEL (No Observed Adverse Effect Level) of about 9,000 mg/kg body weight per day, with no LOAEL (Lowest Observed Adverse Effect Level) identified. Separate rat metabolism work showed that the ester bonds were extensively hydrolysed before absorption, with fatty acids absorbed more readily than the polyglycerol portion [2].

Independent rat feeding work with several polyglycerol ester preparations found no attributable histological abnormalities [3]. A 1964 mouse carcinogenicity paper showed no signal in later regulatory review, but reporting is limited [4]. Earlier utilisation research adds historical dietary evidence [5]. A 2023 peer-reviewed review summarised an old 37-person oral study in which 2–20 g/day for three weeks produced no abnormalities in measured blood, urine, or faecal parameters [6]. Reproductive studies are old and weakly reported, and EFSA found no prenatal developmental study.

Side effects of E475 – Polyglycerol esters of fatty acids food additive

  • Normal food exposure: A consistent adverse-effect pattern has not been demonstrated at ordinary permitted use levels.
  • Reduced fat absorption at very high intake: The 90-day rat study found a dose-related reduction in fat absorption, especially at the highest dietary concentrations [1].
  • Evidence uncertainty: Modern E475-specific reproductive, developmental, and long-term human data are limited, so absence of a detected effect is not the same as proof of zero risk.

Should You Avoid E475 – Polyglycerol esters of fatty acids food additive?

Most people do not need to avoid E475 based on current toxicology. Occasional intake is very different from the maximum-permission scenario behind JECFA’s high estimates. Frequent consumers of several E475-containing processed foods may choose to reduce exposure until better real-use data are available. People following vegan, vegetarian, religious, or other source-based diets may also want to check the manufacturer because the fatty acids can come from plant or animal materials.

Common uses of E475 – Polyglycerol esters of fatty acids food additive

  • Fat emulsions: Helps keep oil and water phases evenly mixed.
  • Bakery products: May support dough handling, crumb texture, and fat distribution where authorised.
  • Confectionery and desserts: Helps stabilise texture and disperse fat consistently.
  • Whipped toppings and similar emulsions: Can improve stability and texture.
  • Edible oils: Certain permitted applications use polyglycerol esters for technical functions such as cloud inhibition.
  • Other processed foods: Uses depend on the food category and the maximum level allowed in the relevant jurisdiction.

Common names and synonyms of E475 – Polyglycerol esters of fatty acids food additive

  • Polyglycerol esters of fatty acids
  • Polyglycerol fatty acid esters
  • Polyglyceryl fatty acid esters
  • Glycerin fatty acid esters
  • PEFA
  • INS 475

What is E475 – Polyglycerol esters of fatty acids food additive?

E475 is a mixture rather than one single molecule. It consists of partial esters made by reacting polyglycerol with edible fats, oils, or fatty acids. Polyglycerol is formed from linked glycerol units, and the fatty-acid portion varies with the raw material. Manufacturers can vary the degree of polymerisation and fatty-acid profile to obtain different technical properties. Because E475 is a class of mixtures rather than one pure compound, no single molecular formula describes every commercial preparation. Its source may therefore be plant-derived, animal-derived, or mixed.

Its main role is emulsification. The mixture interacts with fatty and water-based phases, helping ingredients remain evenly dispersed and improving texture, stability, and processing consistency. Industrial production uses esterification under controlled conditions, followed by purification to meet food-additive specifications. Metabolism research indicates that the ester bonds are extensively broken down in the gastrointestinal tract before absorption [2]. Older utilisation experiments also examined these materials as dietary fat components [5]. E475 should not be confused with E476, polyglycerol polyricinoleate, which has a different composition and evidence base.

Where is E475 – Polyglycerol esters of fatty acids food additive allowed (EU vs US)?

E475 remains authorised in the European Union for specified food categories with category-specific maximum levels. In the United States, polyglycerol esters of fatty acids are permitted as direct food additives for specified technical uses and conditions. Codex tightened a number of international E475 provisions in July 2026, but did not impose a general ban.

Further reading about E475 – Polyglycerol esters of fatty acids food additive

  1. King WR, Michael WR, Coots RH. Subacute oral toxicity of polyglycerol ester. Toxicology and Applied Pharmacology. 1971. 20(3):327–333. (abstract only)
  2. Michael WR, Coots RH. Metabolism of polyglycerol and polyglycerol esters. Toxicology and Applied Pharmacology. 1971. 20(3):334–345. (abstract only)
  3. Babayan VK, Kaunitz H, Slanetz CA. Nutritional studies of polyglycerol esters. Journal of the American Oil Chemists’ Society. 1964. 41(6):434–437. (abstract only)
  4. Bichel J, Therkelsen AJ, Stenderup A. Untersuchungen über die mögliche Cancerogenität eines Polyglycerinesters. Arzneimittelforschung. 1964. 14:238–239. (PubMed record, no abstract)
  5. Bodansky M, Herrmann CL, Campbell K. Utilization of polyglycerol esters. Biochemical Journal. 1938. 32(11):1938–1942. (free full text)
  6. Fiume MM, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler DC, Marks JG Jr, Shank RC, Slaga TJ, Snyder PW, Gill LJ, Heldreth B. Safety Assessment of Polyglyceryl Fatty Acid Esters as Used in Cosmetics. International Journal of Toxicology. 2023. 42(2 Suppl):5S–101S. (free full text, broader polyglyceryl ester review)