The recommendation for most adults is between 600 and 800 IU (International Units). In some cases, even 1,000 to 2,000 IU daily is insufficient to raise Vitamin D levels to the desired range.
Nov. 6, 2024 — Children whose mothers took extra vitamin D during pregnancy continue to have stronger bones at age seven, according to ... Healthy Adults Under Age of 75 Urged to Take ...
Seniors are also likely to have low blood levels of Vitamin D, which has been linked to cardiovascular ... receiving either 200, 1000, 2000, or 4000 international units (IU) per day of 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 ...
A recent study published in the American Journal of Preventive Cardiology found that higher vitamin D doses do not improve ... receiving either 200, 1000, 2,000, or 4,000 international units ...
but adults shouldn't consume vitamin D supplements at levels higher than 4,000 international units daily. The vitamin is best processed by the body through sunlight. Vitamin D is produced by the ...