Amazon.com: Nature Made Vitamin D3 2000 IU (50 mcg), Dietary Supplement for Bone, Teeth, Muscle and Immune Health Support, 100 Tablets, 100 Day Supply : Health & Household
Vitamin D3 Priority™ - Essential Vitamin D3 - Life Priority
Should 1000 IU be the new RDA for vitamin D? - Examine
Vitamin D3 Chews
Nature Made Extra Strength Vitamin D3 5000 IU (125 mcg) Per Serving Gummies, Dietary Supplement, 90 Count - Walmart.com
Supplemental Vitamin D and Incident Fractures in Midlife and Older Adults | NEJM