膳食補充品中維生素D及鈣之監測

Survey on Compliance of Labeling of Vitamin D and Calcium on Dietary Supplements with Regulations in Taiwan

本計畫於97年間於台北市、台中市及高雄市之藥房抽購膳食補充品檢體，分別以線上淨化高效液相層析儀－紫外光檢出器(online SPE LC-UV)及線上淨化高效液相層析串聯質譜儀(online SPE LC\MS\MS)檢測維生素D含量，並以火焰式原子吸收光譜儀(flame atomic absorption spectrophotometer, FLAAS)檢測鈣含量。32件檢體之維生素D含量檢測結果，其檢測值與標示值之比值介於80-120%的檢體有6件，小於80%者有22件，大於120%者有4件。35件檢體之鈣含量檢測結果，其檢測值與標示值之比值介於80-120%的檢體有9件，小於80%者有18件，大於120%者有8件。本調查結果顯示市售膳食補充品維生素D及鈣含量檢測值雖均未超過行政院衛生署公告之食品添加物用量標準，惟維生素D及鈣含量檢測值與標示值不符之情形與95年抽驗結果相似，仍待改善，需針對業者進行更進一步教育及輔導。

In this study, the dietary supplement samples were purchased from drugstores in Taipei, Taichung and Kaohsiung in 2008. On-line solid phase extract high performance liquid chromatography- ultraviolet (online SPE LC-UV) and On-line solid phase extract high performance liquid chromatography tandem mass spectrometry (online SPE LC\MS\MS) was employed to carry out the vitamin D analysis. Flame atomic absorption spectrophotometry (FLAAS) was applied to carry calcium assay. Thirty-two samples were analyzed for vitamin D, and the vitamin D contents of 6 samples detected fell within 80-120% of labeled values, 22 samples below 80%, and 4 samples over 120%. Thirty-five samples were analyzed for calcium. The calcium contents of 9 samples detected fell within 80-120% of labeled values, 18 samples below 80%, and 8 samples over 120%. This survey revealed that the labeled contents of vitamin D and calcium in marketed dietary supplements were all in compliance with the Regulation set by the Department of Health, but the conformation between assayed values and labeled values of vitamin D and calcium still needs to be improved.