I've read your work and there is no question about your talent or ability to tell an excellent story. It is a preference thing, not a slight on your skill at all. I just want to be clear on this point.
Maybe a dietician? I'm sure there are wholesome foods that have a high caloric value, it doesn't all have to be burgers. See if Max can slow down his eating a little bit too, so he'll feel fuller sooner.
Are you getting the same type booster that you got for your initial vaccination? I mixed mine and had some more side effects than I did for the first two.