Does green tea lead to weight loss?
From: The Cochrane Collaboration
- Jurgens, T.M., Whelan, A.M., Killian, L., Doucette, S., Kirk, S., Foy, E., 2012. Green tea for weight loss and weight maintenance in overweight or obese adults, in: Cochrane Database of Systematic Reviews. John Wiley & Sons, Ltd.
- 15 trials including 1,945 participants
- The paper is a systematic review / meta analysis of all relevant trials.
- This means that the data from all similar trials has been grouped to form an overall outcome.
- Weight loss ranged from 0.2 kg to 3.5 kg in those taking green tea as compared to a control.
- Waist circumference ranging from a gain of 1 cm to a loss of 3.3 cm was seen in those taking green tea.
- Two studies conducted to determine if green tea could help to maintain weight lost (184 participants) showed a change in weight loss of 0.6 to -1.6 kg, a change in BMI from 0.2 to -0.5 kg/m2 and a change in waist circumference from 0.3 to -1.7 cm.
- Studies ranged from 12 to 13 weeks.
- The authors conclude that green tea preparations appear to induce a small, non-significant weight loss in overweight or obese adults.
- Yes (without confidence)