Apples can be a nutritious, nutrient-dense fruit very low in calories and fiber. They may also be a good source of vitamin C, which aids your body battle off infections. Your guinea pig can safely love apple skin/peel. There’s no need to have to remove the skin right before feeding. https://chancemlheb.therainblog.com/19978361/can-guinea-pigs-eat-apples-things-to-know-before-you-buy