Art. 9 de la Ley 35-2006: Contribuyentes que Tienen su Residencia Habitual en Territorio Español
3 kg (2. 8 pounds) more weight loss compared to placebo, over a period of 12 weeks. They found no difference in appetite between groups (8). Overall, I looked at 4 more studies.
Two of them showed weight loss of a few pounds over a period of 8 weeks (9, 10), but the other two showed no effect (11, 12).