Is Ammonium Stearate Vegetarian?

Caution

Sometimes. Ammonium stearate (e571) refers to the salt of stearic acid. It may be derived from animal fat depending on the manufacturer.

Ammonium Stearate and the Vegetarian Diet

Ammonium stearate is a chemical compound that functions primarily as an emulsifier in various food products and cosmetics. It is the ammonium salt of stearic acid, a saturated fatty acid. Stearic acid can be sourced from both animal and plant fats, though it is often derived from animal sources, such as tallow, which may not align with vegetarian or vegan dietary preferences.

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How Spoonful reviews ingredients

  • Evidence-based. Diet compatibility ratings are compiled from peer-reviewed nutrition guidance, dietary association recommendations, and ingredient composition data.
  • Continuously updated. Our ingredient database is refreshed as new sources and product data become available.
  • Transparent uncertainty. When an ingredient's safety depends on serving size, preparation, or sub-ingredients, we mark it “caution” rather than forcing a binary answer.
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