Capsicum, the pepper, is a genus of flowering plants in the nightshade family Solanaceae. Its species are native. The health benefits of capsicum include relief from stomach issues, back pain, muscle spasms, headaches, skin aging, peptic ulcers, menopausal problems, lower risk of cardiovascular diseases, and diabetes. It has anti-inflammatory and analgesic properties, and may also provide relief from pain related to arthritis.to the Americas, where they have been cultivated for thousands of years. Peppers are cultivated worldwide and used in many cuisines.