There is no such thing as the “least nutritious vegetable”. Every vegetable has its own unique nutrients, such as providing vitamins and other nutrients that keep the body in a healthy state. Nutrition usually includes protein, carbohydrates, fat, vitamins, minerals, fiber and water. These substances are indispensable, and there is no order of importance; the body cannot function properly without any of them. Take tomatoes as an example, 100 grams of tomatoes contain 16 calories, 2.6 grams of carbohydrates, 0.7 grams of protein, 0.2 grams of fat, 24 milligrams of vitamin C, and 200 milligrams of potassium. So when ingested tomatoes can help provide a person with carbohydrates, vitamins, minerals and other nutrients. There is no single food that can contain all the nutrients that the body needs in the right proportion. So the most important principles of diet are the principles of variety and balance. That is to say, there should be as much variety as possible, and the amount should be neither too much nor too little. Therefore, each food has its unique position in nutrition, there is no such thing as “the least nutritious vegetables”.