When it comes to beta carotene, cantaloupe knocks other yellow-orange fruits out of the park. According to the United States Department of Agriculture (USDA), cantaloupe has more beta carotene than apricots, grapefruit, oranges, peaches, tangerines, nectarines, and mangoes. One study determined that orange-flesh melons like cantaloupe have the same amount of beta carotene as carrots.Beta carotene is a type of carotenoid. Carotenoids are pigments that give fruits and vegetables their bright colors. Once eaten, beta carotene is either converted into vitamin A or acts as a powerful antioxidant to help fight free radicals that attack cells in your body.