[Fey]

Too much yogurt can cause that, HOWEVER, yogurt doesn't contain the lactose that causes the actual digestive issues that are found inherently in milk and cheese. And the healthy cultures IN yogurt help 'reboot', as it were, the digestive cultures found naturally in their system. Vets will tell you the same thing. As will most medical professionals.

That being said, all advice is just that. Take it with a grain of salt and a pinch of sugar.