One common issue faced by horses is digestive upset. Herbs such as peppermint, ginger, and fennel are known to aid digestion. Peppermint can help soothe the stomach and intestines, while ginger can stimulate appetite and reduce nausea. Fennel, with its carminative properties, can help alleviate gas and bloating. Including these herbs in a horse's diet can promote overall gut health, leading to better nutrient absorption and overall vitality.