When I took Barney to the vet she told me that guinea pigs love vanilla yogurt, and she used to feed her pigs vanilla yogurt for a treat. I wanted to double check with ya'll and see if it's true? And also, does it have to be vanilla? I have a strawberry/banana flavor yogurt I'm eating and I'm SO tempted to bring out one of the pigs and let him have a taste - but only if it's safe!