<qa>  What is the duration of the study?- Children and adults with TM, will be divided into 4 groups: standard vitamin D dose equivalent to 400 IUday, intermediate vitamin D dose equivalent to 1000 IUday, high vitamin D dose equivalent to 2,000 IUday and a placebo group that will receive an inactive ingredient. 10 subjects will be assigned to each group. The duration of the study will be 3 months. 