It has been suggested that postprandial blood glucose is an independent predictor of decline in GFR [18]. In this study we found a significant correlation between changes in albumin excretion and changes in Gmax but the linear regression did not show a significant independent contri- bution of Gmax. This may be explained by the very strict control of HbA1c and BP (7% and 125/74 mmHg respec- tively) in this group. It has been reported in a group of T2DM with HbA1c < 7.5% and a BP < 140/90 mmHg that postprandial blood glucose did not predict a change in GFR whereas the group with HbA1c > 7.5e8% had a marked decline in GFR with postprandial levels above 10 mmol/L [18]. Exchanging carbohydrate with protein or fat has been shown to be beneficial in lowering triglycerides, and increasing HDL [19,20] in clinical trials.