The lab my doctor uses has the normal range at 30.0 to 70.0 (ng/mL), my level is like 20 or 25 ng/mL. Is anyone else experiencing this? I have been taking 1200 IU's of D-3 a day for a month, I get it re-checked this week. Tim c5-c6, 21 yrs. post http://www.whoopiekat.com/CrocksCrib/index.htm
