Parkinson's Disease News covers all significant new research, reports, books, and resources concerning Parkinson's Disease. Articles are chosen on the basis of their medical significance or potential interest. Our overwhelming priority is the facts, regardless of whether they contradict prevailing views or vested interests. Analysis and further information are provided either to explain the background or implications, or to balance misleading claims. If you notice errors or inadequacies, or dispute what is written, or want to propose articles, please e-mail



25th January 2018 - New research


Vitamin B6 (pyridoxine) is essential for health. It is especially important for Parkinson's Disease because the brain's own formation of L-dopa is dependent on sufficient levels of vitamin B6. However, high levels of vitamin B6 can lessen the effect of L-dopa and thereby make Parkinson's Disease symptoms worse. A systematic review of unacceptable levels of vitamin B6 among L-dopa users was carried out. The results indicated that a vitamin B6 intake of more than 50 mg per day could reduce the efficacy of L-dopa. Such levels are not necessary for optimal health because the daily requirement of vitamin B6 is up to 2mg per day. Therefore, it is important that those people taking L-dopa for Parkinson's Disease should ensure that any supplements they are taking should not exceed 50mg vitamin B6 (pyridoxine) per day.

Reference : Shokuhin Eiseigaku Zasshi [2017] 58 (6) : 268-274 (Y.Sato, C.Yasumiishi, T.Chiba, K.Umegaki) Complete abstract   For more news go to Parkinson's Disease News


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2018-01-28 17:48:49