Vitamin B6: Beyond Adequacy:

Journal of Evidence-Based Integrative Medicine

David A.Bender¹ 

关键词: vitamin B6;    pyridoxine;    pyridoxamine;    premenstrual syndrome;    depression;    autism;    cancer;    dementia;    carpal tunnel syndrome;   

DOI  :  10.1177/1533210110392946

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

There is good agreement concerning average requirements and reference intakes for vitamin B6 but less agreement over safe upper levels from supplements. High-dose supplements cause sensory nerve damage. Supplements of vitamin B6 have been advocated for treatment of the premenstrual syndrome, with little evidence of efficacy. There are plausible mechanisms for an antidepressant action and protection against steroid hormone—dependent cancers but no evidence from clinical trials. Pyridoxamine reduces the glycation of proteins and so could be beneficial in preventing the adverse effects of poor glycemic control in diabetes. There are plausible mechanisms for an antihypertensive action but only suggestive evidence from small intervention trials. There is no evidence that supplements of vitamin B6 have any beneficial effect in hyperhomocysteinemia. There is neither a plausible mechanism nor any evidence from controlled trials for any effect of supplements of vitamin B6 in preventing a decline in cognitive function with aging, amelioration of dementia or autism, or improvement of the carpal tunnel syndrome.

【 授权许可】

CC BY-NC