Yam is a starchy root vegetable known for its rough, brown skin and mildly sweet, earthy flesh. It is a staple food in many parts of Africa, Asia, and the Caribbean. Yams are rich in carbohydrates, fiber, potassium, and vitamins like vitamin C and B6. They can be boiled, roasted, fried, or mashed and are often used in both savory and sweet dishes. Yams are different from sweet potatoes, though they are often confused.