6 doctors weighed in:
Is 2000 units vitamin d a day excessive, too little, or just right?
6 doctors weighed in

Dr. Ahmad M Hadied
Orthopedic Surgery
3 doctors agree
In brief: See below
The new recommended daily allowance (rda), as set in 2010, is based on age, as follows: for those 1-70 years of age, 600 iu daily; for those 71 years and older, 800 iu daily; and for pregnant and lactating women, 600 iu daily.
The iom further recommended that serum 25(oh)d levels of 20ng/ml (= 50 nmol/l) is adequate, and levels > 50ng/ml (= 125 nmol/l) could have potential adverse effects. Thank.

In brief: See below
The new recommended daily allowance (rda), as set in 2010, is based on age, as follows: for those 1-70 years of age, 600 iu daily; for those 71 years and older, 800 iu daily; and for pregnant and lactating women, 600 iu daily.
The iom further recommended that serum 25(oh)d levels of 20ng/ml (= 50 nmol/l) is adequate, and levels > 50ng/ml (= 125 nmol/l) could have potential adverse effects. Thank.
Dr. Ahmad M Hadied
Dr. Ahmad M Hadied
Thank
Dr. Moinuddin Mokhashi
Pediatrics - Endocrinology
1 doctor agrees
In brief: RDA
Rda (recommended dietary allowance) for ages 1 through 70 yrs is 600 iu including during pregnancy and lactation.
For infants, its 400 iu while for >70 yrs, its 800 iu. Of course, much higher doses are required to treat the deficiency. Reference is below.

In brief: RDA
Rda (recommended dietary allowance) for ages 1 through 70 yrs is 600 iu including during pregnancy and lactation.
For infants, its 400 iu while for >70 yrs, its 800 iu. Of course, much higher doses are required to treat the deficiency. Reference is below.
Dr. Moinuddin Mokhashi
Dr. Moinuddin Mokhashi
Thank
Dr. Melissa Young
Internal Medicine - Endocrinology
In brief: To maintain or treat
It depends on your vitamin d level and whether you are trying to correct a deficiency or just maintain levels that are already adequate.
If the latter, it may be too much, if the former may be ok or may not be enough. If you are trying to fix a deficiency, your level should be monitored.

In brief: To maintain or treat
It depends on your vitamin d level and whether you are trying to correct a deficiency or just maintain levels that are already adequate.
If the latter, it may be too much, if the former may be ok or may not be enough. If you are trying to fix a deficiency, your level should be monitored.
Dr. Melissa Young
Dr. Melissa Young
Thank
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