Role of cannabinoid CB1 receptors on macronutrient selection and satiety in rats.

It has been shown that endogenous and exogenous cannabinoids substantially increase feeding. Despite evidence for a role of endocannabinoids in mediating food ingestion, the mechanisms by which CB1 receptor agonists and antagonists have an effect on motivational processes (hunger, satiety) as well as on specific food preference are not entirely understood. The purpose of this study was to investigate the effects of systemic injection of the CB1 receptor agonist, ACEA, on protein, carbohydrates and fat intake as well as on the behavioural satiety sequence (BSS) in pre-satiated rats.