A vegetable is a type of plant that is consumed as food. Vegetables can be eaten raw or cooked, and they are an important part of a healthy diet because they are low in calories and high in vitamins, minerals, and fiber. Examples of vegetables include leafy greens like spinach and kale, root vegetables like carrots and potatoes, and cruciferous vegetables like broccoli and cauliflower. Some vegetables are also considered fruits, such as tomatoes and cucumbers, because they grow from a flower and contain seeds.

Vegetables are full of essential vitamins, minerals, and antioxidants that provide many important health benefits to your body. For instance, carrots are known for being very high in vitamin A, which plays an important role in eye health, as you grow older. 

Iceberg lettuce is a type of lettuce that is known for its crisp texture and mild flavor. It is a popular salad green that is widely consumed around the world. Iceberg lettuce gets its name from the fact that it is often packed in ice during transportation to help keep it fresh.

Iceberg lettuce is low in calories and a good source of fiber, vitamins A and K, and potassium. It is also high in water content, which can help with hydration.

Iceberg lettuce is high in fiber, which can help promote healthy digestion and regularity.