Zheng JS, et al. - In a Chinese population of 2,671 study participants aged 40-75 years who were free of type 2 diabetes at baseline, researchers studied if there was a relationship between erythrocyte n-3 polyunsaturated fatty acid (PUFA) and incident type 2 diabetes. During a median follow-up of 5.6 years, incident type 2 diabetes cases (n = 213) were identified. In this patient population, an inverse association was found between erythrocyte n-3 PUFA from marine sources (C22:5n-3 and C20:5n-3), as biomarkers of dietary marine n-3 PUFA, and incident type 2 diabetes. In addition, they did not find an association for docosahexaenoic acid (C22:6n-3) or alpha-linolenic acid (C18:3n-3).