If you have a temporary deficiency or increased requirement (say, after a surgery or during recovery from an acute illness), you might only need a short course, perhaps a few weeks of injections, until your vitamin levels normalize or you can meet your needs by mouth again
Characterizing white matter damage in rat spinal cord with quantitative MRI and histology
The goal is to take them properly
5 JCs diet largely consisted of butternut squash, apple sauce, quinoa and corn pasta, spaghetti sauce, and wax beans
Effect of Vitamin D3 Supplementation in the First 2 Years of Life on Psychiatric Symptoms at Ages 6 to 8 Years: A Randomized Clinical Trial
The numbers below show what actually happens