Celery is a member of the Apiaceae family, which also includes carrots, parsley, fennel, and dill. The main difference between celery and other vegetables is its high water content. Celery is about 95% water, making it a refreshing and hydrating food. It's also low in calories and a good source of fiber. Other vegetables contain more vitamins and minerals than celery, but they vary depending on the type of vegetable. For example, carrots are rich in beta-carotene while spinach is packed with iron. So, while celery may not be as nutrient-dense as some other vegetables, it still has some health benefits and makes a great addition to any diet.