SummaryAlthough studies in rodents and humans have evidenced a weaker effect of fat in comparison to carbohydrates on the suppression of food intake, very few studies have been carried out in this field in dogs. This study investigates the effects of a high‐carbohydrate (HC) and a high‐fat (HF) diets on subsequent food intake and blood satiety‐related hormones in dogs. Diets differed mainly in their starch (442 vs. 271 g/kg dry matter) and fat (99.3 vs. 214 g/kg dry matter) contents. Twelve Beagle dogs received the experimental diets at maintenance energy requirements in two experimental periods, following a cross‐over arrangement. In week 7 of each period, blood concentrations of active ghrelin, glucagon‐like peptide (GLP‐1), peptideYY, insulin, and glucose were determined before and at 30, 60, 120, 180, and 360 min post‐feeding. The following week, intake of a challenge food offered 180 min after theHCandHFdiets was recorded over two days. In comparison to the dogs on theHCdiet, those on theHFdiet had a higher basal concentration ofGLP‐1 (p = .010) and a higher total area under the curve over 180 min post‐prandial (tAUC0–180) (p = .031). Dogs on theHCdiet showed a higher elevation of ghrelin at 180 min (p = .033) and of insulin at 360 min (p = .041), although ghrelin and insulintAUC0–180did not differ between the two diets (p ˃ .10). Diet had no effect on challenge food intake (p ˃ .10), which correlated with thetAUC0–180of ghrelin (r = .514,p = .010), insulin (r = −.595,p = .002), and glucose (r = −.516,p = .010). Feeding a diet high in carbohydrate or fat at these inclusion levels does not affect the feeding response at 180 min post‐prandial, suggesting a similar short‐term satiating capacity.