Fiber and potassium in green beans help regulate blood pressure and support heart health.
Dr. Maya K. Vadiveloo, Associate Professor of Nutrition and Food Science at the University of Rhode Island (USA), states: Green beans are not only affordable but also rich in vitamin C and beta-carotene. This vegetable helps reduce inflammation and is a good source of folate and potassium, which aid in blood pressure regulation. Green beans also contain a high amount of fiber, which helps lower cholesterol.

Fiber is an essential part of a heart-healthy diet. In particular, soluble fiber works by binding to cholesterol in the digestive tract so it can be eliminated from the body.
One cup of raw green beans provides nearly 3 grams of fiber, which not only supports digestion but also helps reduce bad cholesterol. Meanwhile, one cup of cooked green beans supplies 1.6 grams of soluble fiber. A 2015 meta-analysis published in Clinical Nutrition found that individuals with the highest fiber intake had a 17% lower risk of developing heart disease and a 17% lower risk of death from heart disease.

Green beans also provide nutrients that can help control blood pressure. The DASH diet, designed to prevent high blood pressure, focuses on increasing the intake of vegetables, fruits, and whole grains while limiting sodium and saturated fats. This diet emphasizes the importance of getting enough potassium, calcium, and magnesium—three minerals that work together to support healthy blood pressure. One cup of green beans supplies 211 mg of potassium, 37 mg of calcium, and 25 mg of magnesium, which are beneficial for blood pressure control, according to Health Digest.