Morning light is not so dangerous to the skin that's why we advice that...Treatment for vitamin D deficiency involves getting more vitamin D -- through diet and supplements . Although there is no consensus on vitamin D levels required for optimal health -- and it likely differs depending on age and health conditions..Milk or yogurt -- regardless of whether it's whole, nonfat, or reduced fat -- fortified with vitamin D,Beef or calf liver.Egg yolks,Cheese are rich source of vitamin D..Consult nearest physician they will do the needful.