Understanding Vitamin D: its role, recommended level, your needs -Vital Formulas
If my current vitamin d blood reading is 72 ng. What is my ideal dose to take to maintain my current blood level? - Quora
Amazon.com: Nature's Way Vitamin D3 Max Supports Healthy Bones and Teeth* Supports Immune Health* 125 mcg per Serving 240 Softgels : Health & Household
Vitamin D and your health: Breaking old rules, raising new hopes - Harvard Health
Nutrients | Free Full-Text | Immunologic Effects of Vitamin D on Human Health and Disease
Vitamin D3 Max (50,000 units per capsule) | Platt Wellness
Vitamin D3 (cholecalciferol) tablets for oral use - Pediatric Endocrinology
Are large doses of vitamin D any good? | University of Eastern Finland
How Much Vitamin D3 Is Too Much? Your Vitamin D3 Daily Intake Based On The Research - YouTube