Northwood Health Foods : Bio-Vitamin D3 5000iu-150mcg (cholecalciferol) : Northwood Health Foods
Solgar Vitamin D3 4000 IU (100 µg) | 60 Veg Caps
Converting Micrograms (mcg) Of Calcitriol To International Units
Vitamin D | Private GP and Wellness Clinic Belfast
Dietary, supplemental and pharmaceutical sources of vitamin D 2 and D 3... | Download Table
Vitamin D recommended intakes. | Download Table
Solgar Vitamin D3 (Cholecalciferol) 1000 IU (25 µg) Tablets - Pack of 90 - Support a Healthy Immune System - Stronger Teeth and Bones - Vegan and Gluten Free : Amazon.co.uk: Health & Personal Care
Natures Aid Vitamin D3 Liquid 2500iu (Vegan) - Vegan from Natures Aid UK
International unit - Wikipedia
Solgar Vitamin D3 (Cholecalciferol) 2200 IU (55 µg) Vegetable Capsules - Pack of 100 - Healthy Bones and Teeth - Supports Immunity and Muscle Function - Vegetarian : Amazon.co.uk: Health & Personal Care