Cinnamon is loaded with powerful antioxidants such as polyphenols, hence protecting body from oxidative damage caused by free radicals.
The antioxidants in cinnamon have anti-inflammatory effects which help lower the risk of disease.
Cinnamon can improve some key risk factors for heart disease like cholesterol, triglycerides and blood pressure.
Cinnamon has been shown to significantly increase hormone sensitivity to the hormone insulin.
Cinnamon helps in reducing fasting blood sugar levels, having a potent antidiabetic effect  at 1-6 grams per day.
Test tube studies have shown that cinnamon can help fight HIV-1, the main type of HIV virus in humans.