Vitamin D2 matches D3 in maintaining vitamin D levels.
Vitamin D2 is just as good as Vitamin D3 at keeping your Vitamin D levels up.
New study reveals best ways to boost vitamin D in cystic fibrosis patients.
Calcifediol: The Key to Fighting Vitamin D Deficiency-Related Diseases
Vitamin D3 Beats D2 for Stronger Bones in Older Adults
