Polyethylene Glycol
Also known as: E1521
EFSA in 2018 evaluated PEG (E1521) as a food additive in food supplements only and concluded no safety concern at proposed uses (ADI 'not specified' / max 10 mg/kg bw/day TDI for low-MW). FDA approves PEG for direct food use within 21 CFR 172.820.
What it is
Polyethylene glycol (PEG, E1521) is a polymer of ethylene oxide. Various molecular weights are used; in food, PEG is primarily a coating agent and a carrier for flavorings and dietary supplements.
Glazing/coating agent, carrier, and antifoam in food supplements and certain confectionery.
Why it's flagged
- high oral doses can have laxative effect
What regulators actually say
"Polyethylene glycol may be safely used as a food additive ... as a coating, binder, plasticizer, and/or lubricant in tablets containing food substances and/or food additives."
"The Panel concluded that there was no safety concern from the use of polyethylene glycol (E 1521) as a food additive in food supplements at the proposed maximum use levels."
Regulatory status
United States — FDA
Approved direct food additive (21 CFR 172.820)
European Union — EFSA
E1521 - re-evaluated 2018, no safety concern at proposed use levels in food supplements
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