What is the best hay for an older horse?

For an older horse, the best hay is typically high-quality grass hay, such as timothy or orchard grass, which is soft and easy to chew. Alfalfa hay can also be beneficial due to its higher protein and calcium content, but it should be fed in moderation to avoid excess weight gain. It's important to ensure the hay is free from mold and dust, as older horses may have dental or respiratory issues. Always consult with a veterinarian for individual dietary needs based on the horse's health and condition.