In terms of nutritional value, Alpinia officinarum is rich in nutrients, including protein, dietary fiber, carbohydrates, vitamins and trace elements. Among them, iron and potassium are the most remarkable elements. The iron in 100 g of foreign ginger is generally about 3.4 mg, and many of them can reach more than 10 mg. Potassium is about 429 milligrams.

Although the carbohydrate content of Jerusalem artichoke is not too high, the carbohydrate content per 100g Jerusalem artichoke is about 17g, but most of them are fructose and oligosaccharides, with little starch content, so the calorie content of Jerusalem artichoke is lower than that of cereals and potatoes, so eating Jerusalem artichoke is helpful to limit calorie intake.

Habit of origin:

Originally from North America, it was introduced to China via Europe, and now it is cultivated in most parts of China. Cold-resistant and drought-resistant, tubers can safely overwinter in the frozen soil at -30℃. Early spring seedlings can tolerate light frost, and autumn leaves can tolerate -4-5℃ for a short time.

Temperate zone 18-22℃ and light 12 hours are beneficial to tuber formation. Resistant to barren soil, not strict with soil requirements. In addition to acid soil, swamp and saline-alkali land, some land that is not suitable for planting other crops, such as ruins, houses and roadsides, can grow.