what is the whole thing of a celery called
Celery for lower BP. Celery contains a phytochemical called phthalides. As an extract, itâs called NBP, and it relaxes the tissues of the artery walls to increase blood flow and reduce blood pressure. Eating the whole food, though, is better. Celery stalk salt content is low, and you also get fiber, magnesium and potassium to help regulate your blood pressure, as well. âTo get the benefit, you should eat roughly four stalks â one cup, chopped â of celery daily,â Dr. Shafer says.