Hi All. Now the sun is well and truly at winter's angle we simply do not get enough sunlight to trigger the usual internal systemic cascade of vitamin D production. I recommend all adults supplement with a good quality liquid vitamin D3 (cholecalciferol) at 2,000 i.u daily for maintenance during winter months. This is for adults who have no hyper-calciemia. If your calcium levels are elevated consult with your doctor prior to supplementing with vitamin D3.
Vitamin D is important for several metabolic actions in the body including balancing Th1 and Th2 which is key for a healthy immune response (not to be confused with thyroid hormones, these are the immune cells produced in the thymus gland). It is also important for healthy bone mineralisation.