The health benefits of green beans are related to their nutrition. For a sweet vegetable, green beans are still relatively low in calories. They are high in vitamin C and vitamin K; with 1 cup providing 20% of the Daily Value for vitamin C and 25% for vitamin K. Green beans also contain vitamin A, potassium, magnesium, folate, zinc and iron as well as a reasonable concentration of B vitamins.
Green Beans for Free Radical protection
Green beans are a good source of the antioxidants vitamin C and beta-carotene, which help keep arteries in good condition and prevent atherosclerosis and cholesterol deposition.
Green Beans for Healthy Bones
The high vitamin K content of green beans may be useful in protecting against osteoporosis by preventing the activation of cells called osteoclasts that cause bone loss.
Green Beans for Colon Cancer Protection
Green beans are high in 4 colon cancer preventing nutrients: vitamin C, folate, beta-carotene and fibre. Studies have shown that people who consume good doses of these nutrients have a lower risk of colon cancer then those that don’t.
Green Beans for Anaemia Prevention
Green beans are one of the few vegetables that contain a good dose on non-haem iron, which is a particularly good iron source for vegetarians. Green beans also contain copper, manganese and magnesium, which further aid in the formation of haemoglobin and therefore oxygen transport to the cells.
Green beans are high in oxalates, naturally occurring substances found in plant foods. Individuals with kidney stones or gallstones may need to avoid eating green beans. Oxalates can also lower calcium absorption in the gut, however, because green beans are also high in calcium, this effect is only minimal.