Guyenet seems to specifically claim that Taubes focused on the hormone insulin instead of the hormone leptin. But, since leptin is still a hormone, I don't see

Guyenet seems to specifically claim that Taubes focused on the hormone insulin instead of the hormone leptin. But, since leptin is still a hormone, I don't see how Taubes' quote that you included is relevant. He also provides plenty of citations for why insulin is the wrong hormone to be looking at.