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 ...

Though ageing can't be stopped, it might be possible to slow it down. Vitamin D, with this nutrient and regular strength ...

In short, while having low vitamin D levels is linked to a higher risk of heart disease, this new study shows that simply ...