You can purchase a bottle of ~400 tiny soft gels of Vitamin D3 from any store with a pharmacy section for about $10. Even just the smallest dose of 5,000 IUs (one small pill) once per day typically raises blood serum levels to a healthy range.
-PM
M:12y - BD:12/11 - D:6/13 - 4Ds
"The ultimate measure of a man is not where he stands in moments of comfort and convenience, but where he stands at times of challenge and controversy." -MLK Jr.