Chlorella vulgaris is a single-celled green algae found in freshwater environments. It is known for its high nutritional value, containing proteins, vitamins, and minerals. This microalga is often used as a dietary supplement due to its potential health benefits, including boosting the immune system and providing antioxidants. In addition to its nutritional properties, Chlorella vulgaris is also studied for its ability to absorb carbon dioxide and produce oxygen, contributing to environmental sustainability. Researchers are exploring its use in biofuels and wastewater treatment, highlighting its potential in both health and ecological applications.