The 75 Hard Challenge can help improve digestion by promoting habits that support gut health and overall well-being. The program's structure encourages participants to engage in daily practices that enhance digestive function, such as regular exercise, proper nutrition, and hydration. By following a healthy lifestyle for 75 days, participants can improve their digestive health and reduce issues such as bloating, indigestion, and constipation. The challenge's emphasis on discipline and consistency helps individuals make lasting changes that support healthy digestion. The daily reading habit can include books on digestive health, providing valuable insights into maintaining a healthy gut.