Vitamin D Deficient Population
Inadequate Recommendations Set for Vitamin D
Deficient Population Produces Deficient Normal Level
Study with High Dose of Vitamin D
The study found the 2000 IU/day is sufficient in achieving a 25(OH)D level of 30 ng/ml in this population. But more importantly, the 4000 IU/day seems to suppress iPTH or intact parathyroid hormone. All adults should take at least 4,000 IU of vitamin D3 daily.
Daily Vitamin D - What I Prescribe
Newborns to 40 lbs (20Kg) 1,000 IU daily
40 – 80 lbs (20 – 40 Kg) 2,000 IU daily
80 – 120 lbs (40 – 60 Kg) 3,000 IU daily
Over 120 lbs (over 60 Kg) 4,000 to 5,000 IU daily
Please note, these dosages are much higher than what the CDC and AAP recommends. But it does seem to be what is required to get your levels to 50-80 ng/ml, levels most favorable to promote health and prevent cancer. Consult your physician and have your vitamin D level checked after a couple of months of taking the higher daily dose. Alter the dose if the vitamin D level is too low or too high.