Is Lactic Acid Vegetarian?
CautionSometimes. Lactic acid (e270) can come from either animal or plant sources. If derived from animals, it is the protein from ground-up horns, hooves, feathers, quills, and hair.
Lactic Acid and the Vegetarian Diet
Lactic acid is an organic acid found naturally in many foods and produced commercially for use in the food industry. It is often used as a preservative, acidity regulator, or flavoring agent. While it can be derived from both animal and plant sources, in commercial food production, it is typically produced via fermentation of carbohydrates such as glucose or sucrose by lactic acid bacteria. It is commonly found in products like yogurt, sourdough bread, and fermented vegetables.
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- 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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