#Ask the expert. hi sir my daughter is 3 yr 7 month old. her Vit D total level is 15.6 ng/ml. our consultant told us to use Uprise D3 60k for 4 weeks. But our relative doctor told us we need to use vit d supplement for 10 weeks as her vit d levels are too low. she is in deficiency. have provided the test report. Pls suggest us which one to follow. thank you.