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Green beans belong to the Fabaceae family, they are grown in temperate, tropical or subtropical climates. They are the pods of green beans and the beans or dry beans, are their developed seeds. These can have different shapes: flat, round, cord-shaped and eight-shaped.

The green bean season is spring and summer and their varieties are classified according to their cultivation, whether it is early, mid-cycle or late:

• Green or red perona beans: flat, wide and long, tender and without strings, cook well.
• Bobi green beans: tube-shaped pod, smaller than perona beans, thick and fleshy.
• Fine beans: slightly granular variety.
• Garrofón: thick and flat grain variety.

They contain a lot of water, carbohydrates, starch, fiber, proteins and few fats, lipids and calories; so they are recommended in weight loss diets. They are rich in vitamins A, C, B1, B2, B3 and B6; in minerals such as potassium, calcium, phosphorus, iron, magnesium, chromium and iodine; in folic acid, beta-carotene, amino acids and antioxidants. They are beneficial for combating diseases such as gout, arthritis and kidney stones. They also help prevent anemia and cholesterol, strengthen the immune system, regulate intestinal transit, are diuretic and purifying and prevent hypertension.

They are a very healthy food because of their high content of vitamins and minerals.