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Five Of 32 Chondroitin Products Tested Met Label Claims - JANA Study

This article was originally published in The Tan Sheet

Executive Summary

Amounts of glucosamine and chondroitin in dietary supplements analyzed for content differed significantly from the levels claimed on labeling "with deviations...ranging from as low as 0% to over 115%," Natalie Eddington, PhD, et al., University of Maryland School of Pharmacy, report.

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SAMe comes up short

Six of 13 supplement products tested contain less SAMe than labeled, ConsumerLab.com announces. SAMe results join those of glucosamine/chondroitin, ginkgo biloba and saw palmetto featured on the site and on eNutrition.com, which will halt sales of failed products. One-year licensing agreement makes the retailer the first to use the ConsumerLab.com Seal of Approved Quality. Recent University of Maryland study finds similar discrepancies for glucosamine/chondroitin products (1see item, p. 19). ConsumerLab.com will release a report on vitamin C in April

Low Chondroitin Levels Due To Poor Quality Control, Cost - ConsumerLab.com

Poor quality control and the high cost of chondroitin are likely to blame for below-label levels of the dietary supplement ingredient found in eight of 25 products examined by ConsumerLab.com, the company reported.

NCCAM Sponsoring First Glucosamine/Chondroitin Sulfate Multicenter Study

NCCAM is sponsoring the first U.S. multicenter study investigating the "short-term (16 weeks) effectiveness of glucosamine and chondroitin sulfate in reducing pain and improving function in a large number of patients with osteoarthritis of the knee," the National Institutes of Health National Center for Complementary & Alternative Medicine announced.

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