Navigating Collagen Intake on a Vegetarian Diet
By Editor • August 24, 2026 • 1 min read
For vegetarians seeking to boost their collagen levels, the journey can be challenging due to the nature of collagen itself. Collagen, a key structural protein found in skin, bones, and connective tissues, is derived exclusively from animal sources, making it difficult for those on plant-based diets to obtain it directly.
Amy Shapiro, a registered dietitian and founder of Real Nutrition, emphasizes that collagen primarily comes from the skin, bones, and connective tissues of animals like chicken, pork, and fish. Both Shapiro and Abigail Collen, a clinical nutrition coordinator at Mount Sinai, agree that traditional collagen powders typically originate from bovine, porcine, or marine sources.
Vegetarians must adapt their diets to support their body’s natural collagen production instead. While there are no true vegetarian collagen options, Collen suggests that pescatarians can consider marine collagen, while ovo-vegetarians might find collagen derived from egg membranes. However, these alternatives are not widely available.
It's important to note that products marketed as “vegan collagen” are not actual collagen; they are merely blends of amino acids and other nutrients that may aid in collagen synthesis. Shapiro highlights that true collagen cannot be sourced from plants, as it is inherently an animal protein.
To enhance collagen production, both experts recommend a well-rounded vegetarian diet rich in protein, vitamin C, zinc, copper, and amino acids. For those who consume eggs, egg whites are a potent source of proline, a crucial amino acid for collagen synthesis. While research on plant-based supplements is limited, they are often formulated with ingredients that support the body’s collagen production.
Source: www.vogue.com