High oxalic acid when eaten raw. Bitter melon is high in oxalic acid, which is a major reason for its astringent flavor. Blanching it before cooking will help remove the astringent flavor and make it taste and texture much better. The oxalic acid in bitter melon can hinder the absorption of calcium from food. Therefore, you should blanch bitter melon in boiling water to remove oxalic acid before eating it, and not eat it raw.

Calcium oxalate is difficult to be absorbed in the human body, which will cause a lack of calcium in the human body, and is prone to calcium deficiency and calf cramps, achondroplasia, fractures and other disorders. Some vegetables containing oxalic acid such as spinach, fresh bamboo shoots, bitter melon, etc., the first dish with boiling water, remove most of the oxalic acid before using, can prevent the generation of calcium oxalate. People who need to supplement large amounts of calcium should not eat too much bitter melon.

Extended information:

Nutritional Value of Bitter Melon

1, clearing heat and benefiting the gas. Bitter melon has clear heat, nourish the blood and qi, tonifying the kidney and spleen, nourishing the liver and brightening the efficacy of the treatment of dysentery, sores and swelling, heatstroke fever, prickly heat too much, conjunctivitis and other diseases have a certain effect.

2, protect the body. Bitter melon has the prevention of scurvy, protect cell membranes, prevent atherosclerosis, improve the body's stress capacity, protect the heart and so on.

3, anti-cancer. Bitter melon in the active ingredients can inhibit normal cell cancer and promote the recovery of mutant cells, has a certain anti-cancer effect.

4, lowering blood sugar, blood fat. It has medicinal and health care functions such as lowering blood sugar, lowering blood lipids, anti-tumor, preventing osteoporosis, regulating endocrine, antioxidant, antibacterial and improving human immunity.

5, beauty skin. Bitter melon can moisturize the white skin, but also calm and moisturize the skin, especially in the easy hot summer, apply ice over the bitter melon slices, can immediately lift the skin irritation.

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