That potato looks so innocent in the photo over there…….but it isn’t! Raw potatoes are toxic, even after you peel them. For a little guinea pig this toxicity is lethal. Aside from making your guinea pig go (X . X), they are high in carbohydrates and low in nutrients, horrible combo for guinea pigs.
Verdict. Leave the potatoes for mashing and french fries, give your guinea pig something else! =)