Dr. Albert Wing-Nang Leung of the Baptist University in Hong Kong claims that a traditional Chinese medicine comprised of powdered guava fruit and leaves may lower blood glucose levels in patients with type 2 diabetes - and apparently without major side effects.

He cited a recent study by the "Diabetes Research Group" from Guangxi Hospital in mainland China. In that report of 55 patients with type 2 diabetes, 80% of patients improved glycemic control taking 2 to 3 grams of guava extract three times a day over the 2 months' study period.

However, during an interview with Reuters Health Dr. Leung is quoted as having said, "Although the guava preparation is already commercially available, we're not sure how well the initial study was controlled and we want to do the study again in Hong Kong."

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