Most people who supplement take between 800 IU and 2,000 IU a day through either ... "Maybe you can clarify the Vitamin D ...
Now, the Institute of Medicine recommends tripling the daily intake for most children ... while teenagers and adults need at least 2000 IU of vitamin D a day to satisfy their body's vitamin ...
1000 IU (25 mcg) per day increases vitamin D blood levels 10 ng/ml (25 nmol/L). 2000 IU (50 mcg) per day increases vitamin D blood levels 20 ng/ml (50 nmol/L). If the vitamin D blood test was 30 ...
The U.S. Recommended Dietary Allowance for Vitamin D is 600 to 800 International Units (IU) per day for most adults. However, the research team found that these amounts are often not enough. In some ...