IL4 and vitamin D deficiency: Vitamin D deficiency was reported to be associated with alterations in IgE receptors, including FCERIG and MS4A2 and CC/CT genotypes of the IL‐4 gene, resulting in an increased risk of developing food sensitization in those with vitamin D deficiency.17 Subsequently, the C allele of the IL‐4 gene was specifically found to increase the risk of food sensitization from low vitamin D.29