E967 — Xylitol
E967 (Xylitol), a sweetener, is rated "watch": fine in moderation. A tooth-friendly sugar alcohol with the same sweetness as sugar but fewer calories. Found in sugar-free gum and toothpaste. Highly toxic to dogs even in tiny amounts.
What is Xylitol?
A sugar alcohol about as sweet as table sugar but with fewer calories and a cooling mouthfeel. Best known in sugar-free chewing gum, mints, lozenges, and toothpaste. Some dental research supports tooth-friendly claims.
What does it do to the body?
Your gut absorbs about half; large amounts cause bloating and laxative effects, but the threshold is higher than for sorbitol or maltitol. Tooth-friendly because oral bacteria can't use it. CRITICAL: even small amounts are life-threatening to dogs (causes a rapid insulin release and liver failure).
What regulators say
EFSA and the FDA both approve it as safe for humans. The FDA has issued separate consumer warnings about its lethality to dogs.
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.
Source: FDA — Paws Off Xylitol ↗