Music Health Wellness TV The green tea diet is a great way to prevent many diseases like cancer protect heart Doctors approved that Green tea helps in reducing cholesterol level, preventing from diabetes, stroke and dementia. Green tea contains catechins which is an antioxidants that detoxify celldamaging free radicals in the body. Catechins will prevent from Cancer , congestive heart failure, Fat burning etc. Studies says that drinking of green tea on a regular basis will protect from allergies, keep the skin young and strong healthy immunity. Similarly, there are many effects of green tea.