Give your gentle giant an appetite and digestive supplement diet. The Probios Equine Appetite and Digestive Supplement Soft Chews are a stabilized source of beneficial bacteria in chew form. This horse supplement helps maintain healthy digestive function in all classes of horses. These equine supplements are ideal during times of stress, such as traveling, following de-worming, antibiotic therapy, during weather changes and foaling. Use these soft chews with horses of all life stages.