E477 — Propylene glycol esters of fatty acids
E477 (Propylene glycol esters of fatty acids), a emulsifier, is rated "watch": fine in moderation. A synthetic emulsifier in cake mixes, whipped toppings, and shortenings. Considered safe by EFSA at typical use levels.
What is Propylene glycol esters of fatty acids?
An emulsifier combining fatty acids with propylene glycol. Used in cake mixes, whipped toppings, dairy alternatives, and shortenings to improve aeration and texture.
What does it do to the body?
Your body breaks it into propylene glycol (which it metabolises to lactate) and fatty acids you use normally. Most people tolerate it well; rare reports of allergic reactions.
What regulators say
EFSA set an acceptable daily intake of 25 mg per kg of body weight per day. The FDA approves it as GRAS for specific uses.
Risk rating: Watch
Mixed evidence or a specific concern (gut, allergy, or contested safety data). Not alarming, but worth keeping an eye on rather than eating without limit.