The 75 Hard Challenge promotes healthy eating by requiring participants to follow a structured diet for 75 days. This commitment helps individuals develop better eating habits and a deeper understanding of nutrition. The program encourages participants to avoid processed foods, sugar, and alcohol, focusing instead on whole, nutrient-dense foods that support overall health. By adhering to a healthy eating plan, participants can improve their physical fitness, mental clarity, and energy levels. The challenge's emphasis on discipline and consistency helps individuals make lasting changes to their diet, leading to long-term health benefits. Additionally, the daily reading habit can include books on nutrition, providing valuable insights into healthy eating.