Tomatoes are excellent. People love them for their taste and color. Tomatoes have plenty of vitamins A and C. They are rich in licopine, a powerful antioxidant. There are thousands of dishes where the main ingredient is the tomato. However, not all parts of the plant are safe. The stems of this species are rather dangerous. They contain tomatine. This substance is poisonous and can even be used as a pesticide. Eat tomatoes, but always remember to remove the stems.