Zeaxanthin What Is Zeaxanthin? Zeaxanthin is synthesized in plants and other microorganisms and is one of the most common carotenoids found in nature. It is the pigment responsible for many fruits and vegetables' vibrant red, orange, and yellow colours. In the body, carotenoids function like antioxidants that protect the body's cells and tissues from free-radical damage. Zeaxanthin is one of only two antioxidant carotenoids found naturally in the human eye, along with lutein. https://www.nationalnutrition.ca/antioxidants/eye-antioxidants/zeaxanthin.html #Zeaxanthin