How many calories are approximately found in a medium tomato?

A medium tomato generally contains approximately 25 calories, making that the correct choice. Tomatoes are low in calories due to their high water content and minimal fat. They are also a good source of vitamins and minerals, contributing to their nutritional value without significant calorie density. This makes them an excellent choice for a healthy diet, particularly for those looking to manage their calorie intake. The other options do not accurately represent the calorie content of a medium tomato; while 20 and 50 calories are close estimates, they do not reflect the average value found in a medium-sized tomato. 80 calories significantly overestimates the caloric content, reflecting a misunderstanding of the nutritional profile of this fruit.