Does green tea lead to weight loss?

From: The Cochrane Collaboration

Journal rating:
rating: 98%
Study Quality:
rating: 100%
%

Overall Reliability

Article Quality:
rating: 75%
Partcipants
rating: 50%

Participants/situation

  • 15 trials including 1,945 participants

Study

  • 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.

Results

  • 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.

Answer

  • Yes (without confidence)

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Keywords