Eggplant is a very good source of dietary fiber, potassium, manganese, copper and thiamin (vitamin B1). It is also a good source of vitamin B6, folate, magnesium and niacin. Eggplant also contains phytonutrients such as nasunin and chlorogenic acid.

The eggplant is used in cuisines from Japan to Spain. It is often stewed, as in the French ratatouille, the Italian melanzane alla parmigiana, the Greek moussaka, and Middle-Eastern and South Asian dishes. It may also be roasted in its skin until charred, so that the pulp can be removed and blended with other ingredients such as lemon, tahini, and garlic, as in the Middle Eastern dish baba ghanoush and the similar Greek dish melitzanosalata or the Indian dishes of Baigan Bhartha or Gojju. It can be sliced, battered, and deep-fried, then served with various sauces which may be based on yoghurt, tahini, or tamarind. Grilled and mashed eggplant mixed with onions, tomatoes, and spices makes the Indian dish baingan ka bhartha. The eggplant can also be stuffed with meat, rice, or other fillings and then baked.