Up to 7 days a week
Guinea pigs should eat radicchio in moderation as part of a varied diet, as it is a leafy green that provides essential nutrients. However, it should not be given in excess as it contains a high amount of oxalic acid, which can be harmful to their digestive system. Guinea pigs should only have a small amount of radicchio as part of their staple vegetable portion to avoid any potential health issues.