According to Dr. Sujata Udeshi, 98% of her patients present with deficiencies of either vitamin D or vitamin B12, which she attributes to lack of sunlight exposure, the use of sun blocks and the consumption of processed foods. And interestingly, she recommends that sunlight exposure takes place between the hours of 10:00 AM to 2:00 PM, exactly the time of day that the sunscare practioners tell us to avoid sunlight. It is good to see more health practitioners suggesting reasonable sun exposure.