Dear Doctor, It all strated with knee pain, doc suggested D3 uprise without any test. Not much improvement after 2 doses.Met another doc and got all sorts of tests done.Vit B12 was 151 pg/ml. and D was 72.6nmol/L after having 2 sachets that is 120000 I .U of D3 uprise. The doc asked me to take 2 more sachets and D3 uprise and then stop. No mention of sunlight exposure etc. I took sunlight off and on. To improbe b12 i was put on injections, i still am alternate days, have taken 12 injections already, in between there was some gap though. I need to know will 5 sachets in total that I have taken of D3 sufficient to improve my vit D levels. 72.6nmol/L was the result after 2 sachets. First doc had asked me to take 8 sachets of 60k IU each for 8 weeks but after the test result as per second doc I had to stop after 5 sachets