The avocado is the fruit that supplies guacamole’s vitamins, minerals, and fats.
Avocado, or Persea americana, is the major ingredient in guacamole, so much of the dish’s nutritional profile comes from its flesh. Avocados provide dietary fiber, potassium, vitamin K, vitamin E, and several B vitamins. They also contain fats, including substantial monounsaturated fat, plus phytosterols and carotenoids.
The avocado is botanically a large berry with one large seed, despite being used in savory dishes like a vegetable. It belongs to the laurel family and is native to the Americas, with a long history of cultivation in Mexico and Central America.
Other fruits may appear in creative guacamole variations, but plantain, papaya, and mango are not the traditional nutritional source named in this question. The lime, onion, chile, tomato, and cilantro often mixed into guacamole add flavor and some nutrients, but avocado supplies the dish’s defining base.