More from Risérus
Trans fatty acids and insulin resistance
"This is especially true [inducing insulin resistance] for conjugated TFA, i.e. conjugated linoleic acid (CLA), which clearly impairs insulin sensitivity."
I think is reasonable to assume that Risérus expects ordinary trans fatty acids to impair insulin sensitivity too, though not quite as effectively as CLA does. He just needs a big enough intervention study to prove it.
Clenbuterol-Induced Insulin Resistance in Calves Measured by Hyperinsulinemic, Euglycemic Clamp Technique
Basically it's looking at acute treatment with a lipolytic agent. Here are the glucose infusion rates under an hyperinsulinaemic clamp:
Clenbuterol prevents epinephrine from antagonizing insulin-stimulated muscle glucose uptake