Jerusalem artichoke is rich in nutritional value, with inulin and dietary fiber as its main highlights

The Jerusalem artichoke, whose scientific name is Helianthus tuberosus, is commonly known as "guizi jiang" because its appearance resembles ginger. It is a perennial herbaceous plant in the Asteraceae family, genus Helianthus, and its main edible part is the underground tuber. It is native to North America, tolerates cold and drought, and has strong adaptability. It is grown throughout China and is a common root vegetable in autumn and winter.

The most notable nutritional value of the Jerusalem artichoke lies in the fact that its tubers are rich in inulin, also known as inulin sugar. This is a natural fructan that, after entering the human body, is not rapidly broken down and absorbed like starch, but instead acts as a prebiotic to nourish beneficial gut bacteria, helping to maintain the balance of the intestinal flora and promote digestion. It is precisely for this reason that the Jerusalem artichoke is often considered more suitable for people who need to manage their blood sugar than ordinary root vegetables, when eaten in moderation.

In addition to inulin, the Jerusalem artichoke is also rich in dietary fiber, which can increase satiety and help intestinal peristalsis. At the same time, the tubers contain B vitamins, vitamin C, and various minerals such as potassium, calcium, phosphorus, and iron. They are low in fat and not high in calories, making them a relatively well-balanced, affordable ingredient.

In terms of eating, the Jerusalem artichoke is versatile: it can be served cold dressed, stir-fried plain, or stewed in soup, and it is also often pickled into a refreshing side dish. Eaten raw, it has a crisp texture with a touch of sweetness. It should be noted that inulin fermentation in the intestines may produce gas, and eating too much at one time can easily cause bloating, so people with sensitive stomachs should control their portion size. When selecting, choose tubers that are plump, with intact skin, and without softness or sprouting; storing them in a cool, ventilated place will keep them fresh.