Excessive antibiotic use may contribute to obesity

08/24/2011 | Los Angeles Times (tiered subscription model)

Microbiologist Dr. Martin Blaser writes in a commentary in Nature that antibiotics have wiped out the Helicobacter pylori bacterium in many people, which may affect obesity and other medical conditions because studies indicate the appetite-regulating hormones ghrelin and leptin react differently when H. pylori is not present in the body. He says research is needed on the consequences of antibiotic use on various medical conditions, including type 1 diabetes.

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