Cantaloupes have lutein and zeaxanthin, two antioxidants that give fruits and vegetables their yellow and red colors. Combined with vitamin A, these antioxidants play an important role in protecting your vision and eye health. They may also help slow the progression of age-related macular degeneration. Cantaloupe has a high water content and provides fiber. Fiber and water can help prevent constipation, promoting regularity and a healthy digestive tract.