TY - JOUR T1 - Vitamin D supplementation JF - Practical Neurology JO - Pract Neurol SP - 35 LP - 42 DO - 10.1136/practneurol-2017-001720 VL - 18 IS - 1 AU - Ruth Dobson AU - Hannah R Cock AU - Peter Brex AU - Gavin Giovannoni Y1 - 2018/02/01 UR - http://pn.bmj.com/content/18/1/35.abstract N2 - Vitamin D testing and supplementation is of great interest to neurologists and their patients. Recommended nutritional intakes of vitamin D in the UK remain focused on bone health, despite increasing evidence for a role outside this area. Here we discuss how neurologists might approach vitamin D testing and supplementation, focusing on two conditions associated with vitamin D deficiency that have an increased risk of downstream complications resulting from these: multiple sclerosis and epilepsy. We set out a rationale for testing serum 25-hydroxyvitamin D concentrations and discuss our personal practice in terms of supplementation, with evidence where available. ER -