Is Keratin Vegetarian?
CautionSometimes. Animal product not typically used in food (more typically seen in medications, supplements, cosmetics and/or cleaning supplies). Keratin is dervied from feather, wool and/or horns. Obtaining horns and feathers often require slaughter.
Keratin and the Vegetarian Diet
Keratin is a fibrous structural protein that is a key component in hair, nails, and the outer layer of skin in animals. It is commonly derived from animal sources like feathers, wool, and horns, which usually involve the slaughter of animals. While keratin is not typically used as a food ingredient, it is often found in cosmetics, hair treatments, and dietary supplements due to its strengthening and protective properties.
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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.
- Not medical advice. Ratings are general guidance. Always consult a registered dietitian for personalized recommendations.
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