Yay for Max! That's got to be a little easier on you, that's for sure, at least as far as finding food he can eat.
I don't eat a lot of dairy for the same reason - gives me gas and tummy-aches a lot of the time. I figure it's because my body finally figured out that cows' milk is for baby cows and my body's decided to reject it.
How I miss a nice tall glass of cows' milk, but actually, I've gotten used to rice milk now!
Gotta run! Good luck.....