Got a solution for the gas problem;put a tablespoon of non-fat yogurt in his food.Plain is best, but if you're into flavors that's up to you.Doesn't eliminate the problem entirely, but you'll be amazed at the difference it makes.This from a 12 year Bostie parent...PS
My wife has asked me to add a bit more here...a grain free diet is better for Bosties;Blue Buffalo and similar brands.Some Bostons can be picky eaters, and you'll want a high quality food on general principles.Good luck with the little guy...