Can guiena pigs have fresh blueberries?

Yes, guinea pigs can have fresh blueberries in moderation as a treat. Blueberries are safe and provide some vitamins and antioxidants, but they should only be given occasionally due to their sugar content. Always wash the berries thoroughly and introduce any new food slowly to monitor for any adverse reactions. Remember to provide a balanced diet primarily consisting of hay, fresh vegetables, and a small amount of pellets.