Diet challenges are structured programs designed to help individuals improve their eating habits and achieve specific health goals. These challenges often involve following a particular meal plan, tracking food intake, or eliminating certain foods for a set period. Participants may focus on weight loss, increased energy, or better overall nutrition. Many diet challenges encourage community support, where participants share their experiences and progress. Popular examples include the Whole30 program, which eliminates sugar and processed foods for 30 days, and the Keto diet, which emphasizes low carbohydrates and high fats. These challenges can motivate individuals to make lasting lifestyle changes.