Green beans

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Green beans
Green beans

The immature, green, succulent pods of Phaseolus vulgaris. The green beans are also called string beans as they used to have a fibrous string running along the seam of the bean. The string has been bred out of most varieties today. Green beans are the most popular edible pod bean in the United States and are a good source of vitamin C

Jambalaya an green beans
Jambalaya an green beans

Other names

Bush Green Beans, Pole Green Beans, Green Beans, String Beans, Snap Beans

String beans
String beans


  • The green bean was introduced to the Mediterranean upon the return of Columbus from his second voyage to the New World in 1493.
Cut green beans
Cut green beans
  • In Columbus’s diary from November 4, 1492 he describes lands in Cuba planted with faxones and fabas “different than ours.” Later he encountered fexoes and habas that were different than the ones he knew from Spain.
  • Faxones was probably the cowpea and fabas and habas was the fava bean. The beans Columbus found were undoubtedly what is now designated Phaseolus vulgaris.
  • For both types, flowers form between around 15 and 45 days of growth. After pollination, the bean flowers swell into the bean pods we eat. All beans, except cool-weather fava beans, are sensitive to frost and cold soil temperatures.
  • Plant when the soil is warm, and all danger of frost is past. Rotate the location of bean crops from year to year to discourage disease.

Nutritional benefits

Green beans are low in sodium, and very low in saturated fat and cholesterol. They are also a good source of protein, thiamin, riboflavin, niacin, vitamin B6, calcium, iron, magnesium, phosphorus, potassium and copper, and a very good source of dietary fiber, vitamin A, vitamin C, vitamin K, folate and manganese. Choose straight green beans (not crooked ones) because they are easier to cook and prepare.

Raw green beans
Nutritional value per 100 g (3.5 oz)
Energy131 kJ (31 kcal)
6.97 g
Dietary fiber2.7 g
0.22 g
1.83 g
VitaminsQuantity %DV
Vitamin A equiv.
35 μg
Thiamine (B1)
0.082 mg
Riboflavin (B2)
0.104 mg
Niacin (B3)
0.734 mg
Pantothenic acid (B5)
0.225 mg
Vitamin B6
0.141 mg
Folate (B9)
33 μg
Vitamin C
12.2 mg
Vitamin K
14.4 μg
MineralsQuantity %DV
37 mg
1.03 mg
25 mg
0.216 mg
38 mg
211 mg
0.24 mg
Other constituentsQuantity
Fluoride19 µg

Percentages are roughly approximated using US recommendations for adults.
Source: USDA Nutrient Database
Soup with green beans
Soup with green beans

String beans San Jose City
String beans San Jose City

Interesting facts

  • The first “stringless” bean was grown in 1894?
  • Green beans are called snap beans as they make a snapping noise when broken in half.)
  • You eat the pod or shell of green beans
  • Yellow string beans called wax beans
Cut green beans
Cut green beans

How are they grown?

  • Bush green beans grow on a plant approximately two feet tall
  • Green beans are classified into two major groups, bush beans and pole beans
  • Pole bean plants actually grow around poles supporting them
  • Pole beans are usually larger and flatter than bush beans and are commonly picked by hand
  • Green beans are picked while still immature and the inner beans are just starting to grow
Beans and legumes
Beans and legumes

How are they consumed?


Green bean salad
Green bean salad


Keto friendliness

Ketometer three - preferred

Keto scale Green beans

W8MD's Ketometer rating scale zero to 10.

  • Lower the number, better it is on a keto or low carb diet
  • Net carbs is calculated by total carbohydrates minus fiber

Also see carb counter

Nutritional information on Green beans

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Food Portal | Food | Nutrition | Diet | Keto | Glycemic index

NB:Carbohydrate, by difference(total carbs-fiber) is also called net carbs


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