Feed your beagle high-quality dry dog food, not "people food" like table scraps. If you use treats as rewards while training, break each treat into three or four small pieces and give one piece at a time. Beagles love to eat and are good beggars.
Beagle - Dog Lover
Choose dog food that helps the dog maintain healthy weight. The beagle dog breed is prone to weight gain and loves treats. You should monitor how much your beagle is eating and provide sufficient exercises to keep it in the best shape possible.
Beagle - Dog Lover
Feeding a beagle can be one of the most challenging tasks about owning a beagle. Their instinct is to eat as much as they can when they can. As a result, they can often become overweight. Never rely on your beagle telling you how much is enough because it's never enough. I have seen a beagle eat its way through half a 5kg bag of dog food and then turn up half an hour later looking for dinner.
A beagle should eat only about 3/4 of a cup of good quality dry food and about 100 grams of meat a day. This can be done in two meals if it is too long between meals for your beagle. Treats during the day are fine and encouraged during training sessions but supplement this out at meal time.
Your breeder will be able to provide your with details on food and quantities for your beagle.
Beagle - Dog Lover