DAG content in lipid droplets was the strongest predictor of insulin resistance. DAG, diacylglycerol; HOMA-IR, homeostatic model assessment of insulin resistance index; LCCoA, long-chain fatty acyl-CoA. Red dots and blue triangles show females and males, respectively. n = 35, 35, 28, 28, 28, and 32 for A, B, C, D, E, and F, respectively.