Carotenoids are a class of natural pigments found in plants, algae, and photosynthetic bacteria. These pigments are responsible for the red, yellow, and orange colors in many fruits and vegetables. Carotenoids play a crucial role in human health as they act as antioxidants, enhancing the immune system and reducing the risk of various diseases. Some well-known carotenoids include beta-carotene, lutein, and zeaxanthin.
