Does celery really help regulate blood pressure?

Celery is one of several foods that can help lower and regulate blood pressure, according to Dr. David Williams. A study at the University of Chicago revealed that the chemical 3-n-butyl phthalide present in celery helps to smooth blood vessel muscle lining.

Smoothing the muscle lining expands the blood vessels and clears a wider path for blood to flow, according to Williams. He recommends that people eat about 4 ounces of celery each day to help with blood pressure regulation. Caring.com advises eating four stalks of celery daily. Adding unsalted peanut butter or almond butter to celery incorporates protein and enhances flavor.