In traditional Indian medicine system called Ayurveda, Tulsi (Holy Basil) is considered as a tonic to retain youth and avoid aging. Vitamin C, Vitamin A, Phytonutrients and the essential oils in Tulsi, are excellent anti oxidants and protects the body from nearly all the damages caused by the free radicals. Tulsi reduces blood glucose levels. Thus it is useful for diabetics. Tulsi contains vitamin C and other anti oxidants (such as Eugenol), which protect the heart from harmful effects of free radicals. Tulsi reduces total cholesterol levels. Thus it is useful for heart disease patients.Tulsi also reduces blood pressure.