Mango is a nutrient-rich fruit that contains a variety of nutrients such as vitamins, minerals and fiber, but compared to other fruits, mango is high in calories. According to the Department of Agriculture, every 100 grams of mango contains about 70 calories. Therefore, if you are controlling your calorie intake, it is advisable to consume mangoes in moderation and take care to pair them with other low-calorie, high-fiber foods.