- The string on the sides of the string bean has to be removed before cooking and eating. Most varieties of green beans that are available today no longer have this string.
- Calvin Keeney bred the first stringless bean, termed the "green bean," in 1894. Burpee Seed Company promoted it. Because green beans required less work to prepare than string beans, they gained in popularity.
- Green beans grow to a variety of sizes but generally average 4 inches in length.
- Green beans are in season from summer through early fall.
- Green beans are low in calories and are a good source of vitamins A, C and K, vitamins that promote strong bones and good cardiovascular and colon health.
- Green beans contain oxalates, a salt that occurs naturally in humans, as well as plants and animals. When oxalates become concentrated, they can crystallize and create health problems. People with untreated gallbladder or kidney problems may want to ask a doctor whether they should be concerned about their intake of food containing oxalates.
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