Green beans contain excellent levels of vitamin-A, and health promoting flavonoid poly phenolic antioxidants such as lutein, zeaxanthin, and β -carotene in right amounts. These compounds help act as protective scavengers against oxygen-derived free radicals and reactive oxygen species (ROS) that play a role in aging and various disease processes.
They also carry good amounts of vitamin-B6 (pyridoxine), thiamin (vitamin B-1), and vitamin-C. Consumption of foods rich in vitamin-C helps the body develop resistance against infectious agents and scavenge harmful oxygen-free radicals.
Morever, they contain healthy amounts of minerals like iron, calcium, magnesium, manganese, and potassium, which very essential for body metabolism. Manganese is a co-factor for the antioxidant enzyme, superoxide dismutase, which is a very potent free radical scavenger. Potassium is an important component of cell and body fluids that helps controlling heart rate and blood pressure.