Carrot. The edible roots of the carrot plant, Dacus carota, are one of the world’s leading vegetable crops. Carrots are a member of the parsley family, Apiaceae or Umbelliferae, and are one of the richest vegetable sources of vitamin A and beta-carotene 1. Carrots are also a good source of vitamin K and a source of vitamin C, thiamin, niacin, vitamin B6, folate, manganese, dietary fiber and potassium 2. Many of these nutrients have antioxidant activities.