Guinea pigs cannot create vitamin C on his own Thus to prevent scurvy, you need to add it to your pig’s diet. Vitamin C drops in your pig’s water don’t work well since the potency dissipates quickly. Ensure that some of the fruits and vegetables you feed your pig are rich in vitamin C such as papaya, oranges, kale, spinach and tomatoes. Preventing a vitamin C deficiency is easierthan dealing with the problems of scurvy. This could cause mobility issues from swollen joints, a lack of energy and weakness. Wounds may heal slowly or bleed excessively. Bleeding under the skin may be present. Your pig may lose his appetite and get thin. He may also have diarrhea. Scurvy is a serious disease and can kill your guinea pig. Make an appointment with your Louisville, CO veterinarian for evaluation and treatment if you notice any signs of scurvy.