Supplements don't work for weight loss: study

Sydney researchers' global review shows there's insufficient evidence for using herbal and dietary supplements to manage weight gain

There is “insufficient evidence” to recommend any herbal or dietary supplements for weight loss, say the Australian authors of the first global review to be carried out in 16 years. 

The University of Sydney researchers found that while a handful of the pills, liquids and powders studied produced greater weight losses than placebo, the decreases were not clinically significant as they were less than 2.5 kg.

Others showed some promising results but had only been examined in a small number of trials,