Another key difference between the two forms of vitamin D is their source. “Vitamin D2 is usually produced by plants when ...

Vitamin D3 seemed more effective than D2 at raising this important blood test. ... (20 mcg per day). ... and prices vary from $10 to $50, ...

Results 50% of bronchiectasis patients were vitamin-D deficient, 43% insufficient and only 7% sufficient. This compared to only 12% of age and sex matched controls with vitamin-D deficiency (p<0.0001) ...

The five-year study tracked 1,054 U.S. adults, comprised of women aged 55 or older and men 50 and older. Researchers chose to examine people 50 and older because it’s during this time when the chances ...