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.
What Minerals Does Tomato Have? Tomatoes are low in fat and calories. Tomatoes might be better known for their vitamin C and fiber contents, but a serving of these fruits contains a healthy dose of minerals as well. Available year round, tomatoes come in many varieties, including beefsteak and cherry. Any variety of tomato provides key minerals, though the amount depends on the type of tomato you select. Iron is an essential mineral that helps make up the proteins that transport oxygen throughout your body.