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A fruit is the mature ovary of a seed plant, usually developed from a flower. Fruits have seeds so they further the reproductive cycle. A vegetable is a plant or that part of a plant which is edible, and does not necessarily have a role in the plant's reproductive cycle.
On the other hand, there is also another type of vegetable: the non-starchy vegetables. These plant foods are nutrient-dense (having more vitamins, minerals, and antioxidants) but contain lower amounts of carbohydrate and energy compared to the starchy vegetables. These are vegetables that have more fiber and fewer calories than the starchy ones.