this could just be a passing event in a puppies life. To me it is better to have a dog drink more water then not enough! Holding water back from a dog seems cruel, the only time I would do so is at bed time but giving him his final drink if he wishes. I feel it will go away with age. Since I never had this problem and not a vet, only speculating. And leting him drink puts his feeding back on track, I would let him drink especially right after eating.
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