My ten year old just lost a terrific little Guinea Pig. Part of the responsibility falls on me, the parent. I did a lot of research, and so did my Daughter. But our little pig died from complications from eating the Hartz brand Guinea Pig food. Our Vet told us it was the corn in the food. Never ever should Cavy’s have kernel corn. I am not sure about ground, although it probably causes the same issues. Boycotting Hartz isn’t too difficult, their products suck anyway, but it is really sad that we had to lose a terrific pet to realize it. All of the Hartz Guinea pig food should be removed from shelves, even the treats are dangerous for the animals’ health, Guinea Pig’s shouldn’t have dairy either. STAY AWAY FROM HARTZ!!