Green Tea with Caffeine reduces body weight according to an analysis of existing studies
Researchers at the University of Connecticut School of Pharmacy, the Department of Drug Information at Hartford Hospital, and the Cleveland Clinic performed a systematic review and meta-analysis of randomized controlled trials of Green Teas effects on anthropometric variables, including body mass index (BMI), body weight, waist circumference (WC), and waist-to-hip ratio (WHR). They performed a systematic literature search of MEDLINE, EMBASE, CENTRAL, and the Natural Medicines Comprehensive Database through April 2009.
Fifteen studies that included 1243 patients met the inclusion criteria. On meta-analysis, Green Tea with caffeine decreased BMI, body weight by over 3 pounds on average compared with caffeine alone. The study was accepted for publication October 20, 2009 in the American Journal of Clinical Nutrition.