How many calories in Guava? The word 'Calories' changes everyone’s facial expression, especially the ones who follow a proper health diet. But are calories bad? No, they aren't! Our body needs calories for energy. Eating too many calories and not burning them through physical activity can result in weight gain. The term Calorie refers to the energy that is consumed from eating and drinking. The amount of calories are different in frozen, dried and canned form of fruits. The calories present in fresh fruit with peel and without peel are also different. Guava calories play a vital role in Guava Nutrition. Calorie content of this fruit is due to the presence of essential fats, carbohydrates and proteins. From the information provided below, you can conclude that this fruit belongs to Low Calorie Fruits category. For a serving size of 100 g, the amount of calories present in this fruit are as follows: