I've noticed a few anecdotes here regarding carb-cravings on a relatively lower-fat paleo diet. Looking around the academic lit, there seems to be at least one viable and rat-confirmed explanation for this (which would also help explain appetite disregulation on the SAD, and the success of Taubes-paleo LC for appetite regulation). Potentially, this could also mean prolonged lack of sexual activity exacerbates carb-cravings.
I'm wondering (1) whether the diet-> oxytocin -> satiety connection has been addressed before by any paleo-types and (2) whether this sounds like a viable explanation or not.
I'm an economics student who was pre-med in undergrad, not a neurophysiologist..
Simplified story: So oxytocin (OT) is the famous love hormone. Has all kinds of nice effects, among them a marked decrease in appetite, i.e. increase in satiety and specifically a significant increase in carb-specific satiety. Oleoylethanolamine (OEA) is a nuclear receptor agonist lipid that, among other things, systemically stimulates oxytocin in the brain-stem and hypothalamus. OEA is itself regulated by diet and dietary fat intake specifically stimulates OEA's production (which occurs in the gut) as well as other related satiety-stimulating agents. Finally, oxytocin synthesis is inhibited by dietary sugar intake.
So dietary fats reduce carb-cravings via oxytocin+ stimulation. Sugar exacerbates them via oxytocin inhibition. To eliminate carb-cravings, eliminate sugar (maybe go VLC, substitue with stevia or something?) and up the dietary fat intake. Make sense?
Not sure how dietary protein might factor into this.