#asktheexperts hi dr..my son is 3 years 11 months old now ..it looks he has lil knocked knees .. so we consulted dr ..but he told not to think too much dr is no need to be worried and gave calcium syrup daily 10 ml for 3 months n if needed continue to 8 months with that also gave d3 sachet granules 60,000 IU weekly once for 2 months and told we can continue giving them monthly once after 2 months... is it safe to give this d3 sachets at this age please suggest thankyou