Bernese Mountain Dogs are generally moderate eaters in terms of quantity, given their size and activity level. However, they do require a balanced diet with appropriate amounts of protein, carbohydrates, and fats. Overfeeding can lead to obesity, which can cause health problems and reduce their lifespan. It's important to follow feeding guidelines and monitor your dog's weight to ensure they are healthy and maintain an appropriate weight. Additionally, as mentioned earlier, Bernese Mountain Dogs are prone to bloat, so it's important to spread out their meals throughout the day rather than feeding one large meal.