Bran also contains some substances, such as magnesium and γ-oryzanol, that may improve glycemic control.12, 13 Insufficient dietary intake of magnesium may contribute to exacerbation of insulin resistance due to inhibition of the autophosphorylation of insulin receptors.14, 15 One pack of GBR (113 g) contains 72.5 mg of magnesium, while the same amount of WR only contains 2.3 mg. The gene discussed is INSR; the disease is Insulin resistance.