What is a celery stalk?

A celery stalk is the long, green, fibrous stem of the celery plant that is commonly used as a vegetable in cooking. It has a crunchy texture and a mild, slightly salty flavor. Celery stalks are low in calories and a good source of vitamins and minerals, including vitamin K, vitamin C, potassium, and folate. They can be eaten raw as a snack, added to salads, soups, stews, or stir-fries, or used to make celery juice or smoothies. Celery stalks are also often used as a garnish or to add flavor to dishes.