Malhotra R, et al. - Dietary protein intake could have deleterious renal effects in populations at risk for chronic kidney disease. Whether higher protein intake (≥80th percentile of energy from protein) is associated with decline in kidney function and whether this decline varies by diabetes status, were investigated. In analyses that accounted for risk factors for kidney disease, researchers observed that higher protein intake as a percent of total energy intake was positively associated with greater decline in estimated glomerular filtration rate among African-Americans with diabetes.