Below are the health benefits of cinnamon: It strengthens the immune system and helps prevent the common cold and flu.It is full of antioxidants, including polyphenols, and thus reduces inflammation in the body.It reduces blood pressure, triglyceride, and cholesterol levels, and protects against heart disease.It helps regulate blood sugar level by reducing insulin resistance in the body.It has antibacterial and antifungal properties.It helps induce bowel movement.