most important benefits of lemon for humans

Is lemon a fruit or vegetable?
What are the most important benefits of lemon for humans??
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Lemon is a type of fruit, as it belongs to the Citrus family, or what is known as citrus, which are plants that grow from seeds and contain seeds inside them, and their fruits grow from flowers, unlike vegetables that are described as not containing seeds, and are not considered fruits but rather parts. Various parts of the plant, such as leaves, stems, and roots.