A Cochrane review [Abstract] 1 included 10 studies comparing a low glycaemic index or glycaemic load diet (LGI) with other diet, with a total of 1210 subjects. Interventions ranged from 8 weeks to 18 months There was little to no difference in change in body weight compared to higher GLI diets (mean difference (MD) -0.82 kg, 95% -CI -1.92 to 0.28; I²=52%; 7 studies, n=403), or in body mass index or fat mass. There was little to no difference in change in body weight compared to other diets (MD -1.24 kg, 95% CI -2.82 to 0.34; I²=70%; 3 studies, n=723).
Comment: The quality of evidence is downgraded by risk of bias (blinding of participants and personnel) .
Primary/Secondary Keywords