Gaining weight for your megaesophagus dog is no easy task. They need to be fed in an upright position to allow gravity to take on the chore of the useless esophagus. For 6 years the meatball method worked for Pluto. Swallowing soft whole meatballs allowed him to gain and maintain a good healthy weight.
I hope this video helps anyone struggling to find a method that works for their ME dog. Each dog is different but when you find a way that works, stick to it. Don't fix what isn't broken.
/ plutomedog