Phytonics Podo Comp is a supplementary feed for horses and ponies that improves blood flow to the hooves. Osteoarthritis can have many causes such as overuse, problems elsewhere in the body, excess starch carbohydrates (fructosamine), toxins, certain medications (corticosteroids) and trauma. This causes swelling of the hoof skin. This leads to unpleasant situations and may eventually lead to tilt of the hoof bone.