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Vitamin D (Ergocalciferol) 1.25 mg equivalent to 50,000 USP Units
The exact amount of vitamin D you need, as per your age - Times of India
Solgar Vitamin D3 (Cholecalciferol) 600 IU (15 µg) Vegetable Capsules - Pack of 120 - Keeps bones and teeth healthy, Supports Muscle Function and Immunity - Vegetarian : Amazon.co.uk: Health & Personal Care
Vitamin D Measurement & Supplementation: What, When, Why & How?
Nature Made Extra Strength Vitamin D3 5000 IU (125 mcg) Softgels, Dietary Supplement for Bone and Immune Health Support, 100 Count - Walmart.com
Vitamin D3 (Cholecalciferol) 4000 IU (100 mcg) Vegetable Capsules | Solgar Gold Standard Vitamins & Supplements
Vitamin Conversions – International Units (IU) to mg or mcg - Ask The Scientists