366 million people around the world suffer from diabetes, over 90% of them from type 2 diabetes. A research team from the U.S. and Singapore established that high walnut consumption lowers the risk of contracting type 2 diabetes mellitus. They analysed data from one of the most significant American long-term studies that mentored thousands of nurses over a number of years. Of close to 140,000 women aged between 35 and 77 who did not suffer from diabetes, cancer or a cardiovascular disorder at the start of the study, approximately 6,000 nurses contracted type 2 diabetes within a period of ten years. The data show that the proportion of nurses who contracted type 2 diabetes was lower among those with high walnut consumption, compared with women who seldom or never ate walnuts. Walnuts are unique in their composition. Along with fibre and antioxidants, they contain polyunsaturated fatty acids with an optimal ratio of Omega-3 to Omega-6. This positively impacts insulin levels and, thus, the risk of diabetes.