The best way to get your pigs to become interested in this food is to slowly introduce it in their daily diet. Guinea pigs are creatures of habit, so they don't take very well to dramatic changes in routine or diet. Place small amounts near their food every day. My pigs liked most of this food, but they stayed away from certain bits like those thin sticks. DO NOT SUBSTITUTE YOUR GUINEA PIG'S REGULAR FOOD WITH THIS. Your pigs need a lot of daily Vitamin C. While Vitapol food has a lot of fiber, they need fresh fruits and veggies on the daily.