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.
Whole-grain products such as brown rice, whole-grain pasta, beans, whole wheat bread, whole oats, buckwheat, millet, whole rye, whole-grain barley and whole-grain corn are considered good carbohydrates. These foods are rich in fiber, vitamins, minerals and phytonutrients that are beneficial to your health.