Pet foodAvoid

Propylene glycol

البروبيلين غلايكول

Additive (species-restricted)

The Verdict

Banned in cat food - fine for dogs

What It Is

A humectant (moistening agent) used in some semi-moist foods.

⚡ WTF Fact

The other half of the species split: the FDA prohibits propylene glycol in cat food because it damages cats’ red blood cells, yet it’s recognised as safe in dog food. On a cat-food label it’s a hard stop - and never feed a PG-containing dog food to a cat. For dogs it’s a permitted moistening agent with no nutritional upside.

Evidence & Status

Halal Status: Halal

Synthetic; permissible. (Cat-food prohibition is a safety, not a halal, matter.)

Also Known As

1 · 2-propanediol · PG · E1520

Primary Source

21 CFR 589.1001 - FDA determined propylene glycol in/on cat food has not been shown by adequate scientific data to be safe; its use adulterates the feed. GRAS for animal feed in other uses.

Evidence, not medical advice. You decide.

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