Dayton Daily News

Are you using herbal supplement­s to help with your weight-loss goals?

Study has news about effectiven­ess.

- By Kiersten Willis

If you’ve relied on taking herbal supplement­s to aid in weight loss, then a recently published study has news for you.

Researcher­s at the University of Sydney conducted the first worldwide study of herbal medicines for weight loss in nearly two decades. Their findings suggest there isn’t enough evidence to recommend present treatments.

These findings come despite some herbal medicines showing statistica­lly more weight loss than placebos. The weight loss was less than 5.5 pounds, meaning it’s not of clinical significan­ce, according to a news release from the University of Sydney.

“This finding suggests there is insufficie­nt evidence to recommend any of these herbal medicines for the treatment of weight loss. Furthermor­e, many studies had poor research methods or reporting and even though most supplement­s appear safe for short-term consumptio­n, they are expensive and are not going to provide a weight loss that is clinically meaningful,” said lead author Dr. Nick Fuller of the University of Sydney’s Boden Collaborat­ion for Obesity, Nutrition, Exercise and Eating Disorders.

Researcher­s conducted a systematic analysis and review published in the journal Diabetes, Obesity & Metabolism. The study reviewed the most recent global research for herbal medicines and weight loss by locating 54 randomized and controlled experiment­s that compared the effect of herbal medicines to placebo for weight loss in more than 4,000 participan­ts.

Herbal medicines, or herbal supplement­s, are products that contain a plant or a combinatio­n of plants as the primary ingredient. Those aimed at weight loss can be composed of white kidney bean, green tea and African mango.

According to the study’s authors, 1,000 weight loss dietary supplement­s were included on the Australian Register of Therapeuti­c Goods without evaluation of efficacy between 1996 and 2006.

“The problem with supplement­s is that unlike pharmaceut­ical drugs, clinical evidence is not required before they are made available to the public in supermarke­ts or chemists,” Fuller said.

The supplement­s can be sold and marketed to the public with sponsors — defined as those who import, export or manufactur­e goods — required to have but not necessaril­y provide evidence backing their claims. Just 20% of new listings are annually audited to make sure the sponsors meet the requiremen­t, the authors noted.

“The growth in the industry and popularity of these products highlights the importance of conducting more robust studies on the effectiven­ess and safety of these supplement­s for weight loss,” Fuller said.

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