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M L Dansinger
Dr M L Dansinger, Tufts-New England Medical Center, Boston, MA, USA; email@example.com
in overweight or obese persons, is dietary counselling effective for weight loss?
Medline and Cochrane Central Register of Controlled Trials (1997 to July 2006), and reference lists, including that of an extensive systematic review published in 1998.
Study selection and assessment:
randomised controlled trials (RCTs) that compared dietary counselling (advice to change dietary patterns to limit fat or calorie intake, with or without exercise counselling) with a control intervention (usual care or a minimal intervention such as general verbal or written advice) for weight loss in overweight or obese adults. Additional inclusion criteria were study duration ⩾12 weeks and outcome assessment at ⩾16 weeks. 46 RCTs (n = 11 853, mean age 27–68 y, median 60% women, mean body mass index [BMI] 25–40 …
Source of funding: Agency for Healthcare Research and Quality.