Supplements in practice - Vitamin D

Question 1

Vitamin D

Answer 1

Many groups of people are Vitamin D deficient; only small amounts are available from food. A lack of sunlight exposure, excessive sunscreen use and genetic polymorphisms, increase risk of deficiency.
* Vitamin D3: Cholecalciferol (active form). Most effective form.
* Vitamin D2: Ergocalciferol (inactive vegetarian form).
* Vegan form of D3 from lichen is suitable for vegetarians / vegans.
* Cod liver oil is often used for its vitamin D content.
* Oral spray forms an effective method of delivering active D3 directly into the bloodstream, bypassing digestive system.
* Supplement Vitamin D3 alongside vitamin K2.