Princeton's WordNet(4.60 / 5 votes)Rate this definition: 1  operation(noun) the state of being in effect or being operative. 2  operation(noun) a business especially one run on a large scale. 3  operation(noun) a planned activity involving many people performing various actions.
Tomatoes are a nutrient-dense food, meaning they are jam-packed with nutrients, but don't have a lot of calories. Lipids, carbs and protein are the three types of macronutrients your body breaks down for energy. The primary macronutrient in tomatoes is carbohydrates, although they do have trace amounts of fat and protein.
While grape tomatoes are low calorie, they provide your body with many nutrients. Four ounces of sweet grape tomatoes contains 1.2 gram of fiber, 0.8 grams of protein and 4.4 grams of carbohydrates.Tomatoes also contain vitamin C, potassium, minuscule amounts of fat and sodium and antioxidants that may help prevent illness and certain forms of cancer.aloric Impact on Diet. Eating sweet grape tomatoes increases your vegetable intake without significantly increasing your caloric intake. The low-calorie low-fat food provides you with carbohydrates, your body's prime energy source.