See how he goes for a day or 2 chapie is full of grain ect and may have just caused him to have his upset tummy , hopefully once its out of his system he should return to normal, any change of food again at the moment may just exagerate the problem and then you,l never know what was the cause of continued tummy trouble . I would always be tempted in your position feeding complete to have given him some of your meat rather than give him a different dog food if ever you run short again at least youl know whats gone in him .hope he feels better soon .

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