Cajanin is primarily known for its biological activities and is studied for potential applications in health and medicine. It exhibits antioxidant properties, helping to neutralize free radicals in the body, which may reduce oxidative stress and support cellular health. Research suggests cajanin has anti-inflammatory effects, making it a candidate for managing inflammatory conditions. It has also shown antimicrobial activity against certain pathogens, indicating possible use in controlling microbial infections. Additionally, cajanin is being explored for its neuroprotective and anticancer potential, with studies indicating it may inhibit the growth of certain cancer cells and protect nerve cells in models of neurodegenerative diseases. Due to these properties, cajanin is of interest in developing functional foods, natural therapeutics, and nutraceuticals.