Eggplant is a fruit that originated in India and is closely related to tomatoes. It is high in antioxidants and helps lower blood cholesterol. Eggplant grows from late summer to early autumn and prefers fertile, well-drained soil. It should be harvested after developing color but before losing shine. Eggplant stores well in the refrigerator for up to a week and is high in fiber, potassium, and vitamins B1 and B6. It can be grilled, baked, or added to dishes like soups and casseroles.