92 day juice fast br br The healing sun book br br br See why Vitamin D deficiency is such a big problem and why you have to work to get your vitamin d. There are not many more important things to do than to get enough sunlight in your life. br br br WHY IMPORTANT: br 1.) The flu br 2.) Muscle weakness br 3.) Psoriasis br 4.) Chronic kidney disease br 5.) Diabetes br 6.) Asthma br 7.) Periodontal disease br 8.) Cardiovascular disease br 9.) Schizophrenia and Depression br 10.) Cancer br Best source: The sun without sunscreen.