Every March and April is the period when onions are abundant. The nutritional value of onions is very high. Different colors of onions have different nutritional values and eating methods.
Nutritionist Xia Ziwen pointed out that onions are rich in nutrients, including vitamin A, vitamin B group, vitamin C, and minerals such as potassium, calcium, zinc, and selenium.
A flavonoid compound with powerful antioxidant properties, maintains blood vessel elasticity, has cardiovascular benefits, and has antibacterial properties.
Although the quercetin content of the outer skin of an onion is higher than that of the inner layer, people usually peel it off before eating it; if so.
The source of the strong smell of onion, the smell is pungent and easy to make people cry after cutting; allicin can stimulate gastric acid secretion, antibacterial, reduce free radicals, enhance immunity, and inhibit the synthesis of carcinogens.
Can dilate blood vessels and reduce the resistance of blood vessels.
Can reduce blood lipids, stabilize blood sugar fluctuations, increase satiety, promote intestinal peristalsis, and help maintain the balance of bacterial flora.
Xia Ziwen pointed out that there are 3 colors of onions, which have different nutrients and tastes, and are suitable for different cooking methods; and domestic onions have high sweetness and thick meat, and are suitable for stir-frying, stewing soup, cold salad, and eating raw. Onions have a spicy taste, while cooked onions taste sweet.
Contains more anthocyanins and lower water contentLess, crispy meat, spicy taste, suitable for lettuce salad and color matching.
Also known as milk onion, it has high moisture and sweetness, tender meat, slightly spicy, suitable for fresh eating, baking and stewing.
Contains more allicin, more water, tender and delicate meat, strong spicy taste, suitable for stir-frying and stewing.
The surface is smooth and dry, without water damage or crush marks, so it is not easy to rot. Gently press it with your hand, if it is soft, it means that it has deteriorated and water, and it is recommended not to buy it. The heavier weight means that the moisture content is sufficient and the sweetness will be higher. Onions with a solid mouth are more mature and sweeter, and the tips are dry and not easy to germinate, and they are resistant to storage.
Xia Ziwen reminded that onion is a more irritating vegetable, which is easy to cause flatulence. In addition, if you are afraid that the smell of your hands will be too heavy after cutting the onions, you can easily deodorize them by rubbing lemon slices on your hands.
◎ This article is from / Xia Ziwen - a nutritionist close to your life ◎ Image source/Provided by Dazhi Image/shutterstock
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