Out of the hundreds of patients I have checked, I have only found one person in Seattle that had a normal vitamin D level. Repleting deficiency is imperative, as this vitamin that is now considered a “pro-hormone” may have more of a role in the physiology of the body than we are currently aware. Overdosing on vitamin D can result in a life threatening case of hypercalcemia as vitamin D and calcium absorption are interrelated.
Do NOT take more than 1000 IU of vitamin D without being monitored by your doctor. Although the active form of vitamin D in the body is 1, 25 cholecalciferol the best test for vitamin D levels is 25-D-OH, ask your doctor to do a basic metabolic panel and check your vitamin D, pre-treatment, a month out, 3 months out and so forth. If you are deficient in vitamin D and start a 2000 IU daily dose it will take about 1 week to raise your vitamin D levels 1 point.
So if your level is 16 and you need to get to 60, it will take about 44 weeks to get you back to the normal range. You are better off doing this gradually in my opinion as we do not want to cause atherosclerosis (hardening of the arteries) by hypercalcemia from taking large doses of vitamin D at once. Other naturopaths may be willing to dose you up really high, but I am completely against it, until we have more research supporting the safety of this fat soluble vitamin that stores in the body. Be sure to use vitamin D3 (cholecalciferol) in an emulsion form, because vitamin D2 is just crap, and not worth your time taking.