According to reports from other groups, circulating free fatty acids, microsomal triglyceride transfer protein, monoacylglycerol acyltransferase, diacylglycerol acyltransferase and Niemann-Pick C1-like 1 have been implicated as the cause for chylomicron overproduction in MetS and type 2 diabetes mellitus (reviewed in Williams27). This evidence concerns the gene MTTP and type 2 diabetes mellitus.