Crunchy, crispy celery is well known for being low in calories, but its health benefits go far beyond its use as diet food. Celery contains useful phytonutrients, vitamins, and minerals. It's a convenient on-the-go snack as well as a vegetable that can be incorporated into cooked dishes, stir-fries, and salads.
Unlike some vegetables, celery retains most of its nutrients even if it is steamed. A study published in the journal LWT – Food and Science Technology compared celery that had been steamed, boiled, and blanched and discovered that 10 minutes of steaming allowed the vegetable to maintain 83 to 99 percent of its antioxidants. On the other hand, boiling and blanching led to 38 to 41 percent antioxidant loss.
Celery should be eaten within seven days of buying it, according to World's Healthiest Foods. After five to seven days, significant amounts of the antioxidants in celery disappear. Additionally, more healthy flavonoids stick around in freshly chopped celery than celery that is chopped and stored.