IGHE and asthma: The seven trials were done in different countries, namely Germany, Poland, Turkey, Hershey, India, the Netherlands, and the United Kingdom; three studies were conducted in children, while four studies were in adults, and the studies enrolled stable asthma, persistent asthma, and Immunoglobulin E (IgE)-dependent asthma, while different doses of vitamin D from multiple manufacturers were administered orally or subcutaneously [5].