There has been considerable scientific research into the functions of Vitamin D in our body. Vitamin D is one of the few vitamins that the body can produce itself. This occurs in the skin under the influence of sunlight. Since the sun in the Netherlands during the winter months is not strong enough for the production of vitamin D, a supplement with vitamin D is a sensible addition for many people. The Dutch Health Council advises certain groups, such as the elderly and people with darker skin tones, to take extra vitamin D. Vitamin D supports the body's immune system, normal muscle function, and bones Ideal dosage for the dark winter months Vitamin D as Cholecalciferol
