Spinach

Spinach

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Fresh spinach leaves
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Course
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Associated national cuisine
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Invented
Cooking time	minutes to minutes
Serving temperature
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Ingredients generally used
Variations
Food energy	kcal
Nutritional value	Protein: g, Fat: g, Carbohydrate: g
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Spinacia

Fresh spinach leaves

Spinach salad with strawberries and nuts

Spinach (Spinacia oleracea) is a leafy green flowering plant native to central and western Asia. It is of the amaranth family, Amaranthaceae, subfamily Chenopodioideae. Its leaves are a common edible vegetable consumed either fresh, or after storage using preservation techniques by canning, freezing, or dehydration. It is an annual plant (rarely biennial), which grows to a height of up to 30 cm. Spinach may survive over winter in temperate regions.

History

The plant was introduced to China in the 7th century as the "Persian vegetable" and arrived in Europe in the 12th century, where it became a favored leafy green known for its health benefits. It was brought over to North America in the 19th century, quickly becoming popular.

Nutritional Value

Spinach is rich in iron, vitamins (especially vitamin A, vitamin C, and folate), minerals, and antioxidants. Despite its reputation for high iron content, its bioavailability is low due to the high concentration of oxalate, which binds the iron.

Culinary Uses

Spinach can be eaten raw as part of salads or cooked by boiling, steaming, or sautéing. It is also commonly used in soups, stews, and casseroles. It pairs well with dairy products, nuts, and lemon.

Varieties

There are three main types of spinach:

• Savoy – Has crinkly, dark green leaves. It is more tolerant of cold weather.
• Semi-savoy – A hybrid variety with slightly crinkled leaves. Easier to clean than savoy.
• Smooth-leaf – Has flat, unwrinkled leaves. It is easier to clean and is commonly used for canned and processed spinach products.

Cultivation

Spinach grows well in cool climates and can be harvested 40 to 45 days after planting. The plant prefers moist, nitrogen-rich soil. Spinach is prone to bolting (going to seed) in warm weather, which makes the leaves bitter.

Health Benefits and Concerns

Spinach is known for its potential health benefits, including improving eye health, reducing oxidative stress, and helping prevent heart disease and cancer. However, it also contains oxalates, which can contribute to kidney stones in susceptible individuals.

In Culture

Spinach has been popularized in various cultures, notably through the character Popeye the Sailor Man, who gains superhuman strength by consuming spinach.