eek .....he should be full for a week now, but I bet he isn't, the greedy boy!!
Seriously, I am sure you will keep an eye on him, to make sure he does not have an attack of colic....I am sure he will be fine, but sensible to keep an eye out.
My friends big cob, leaned over the fence to the pheasant hoppers full of food, and scoffed a great deal. She was proper poorley, and the vet had to come out. I bet she would do it again, given the chance.