Drinking squeezed fruit and vegetable juice for a long time will lead to calcium deficiency. Green leafy vegetables contain a lot of oxalic acid. Oxalic acid combines with calcium in intestine to form calcium oxalate, which reduces the absorption of calcium. Oxalic acid entering the bloodstream will increase the risk of kidney calculi. Generally, after green leafy vegetables are cooked, they will be blanched to remove oxalic acid, then refrigerated, boiled or fried. Green leafy vegetables contain more oxalic acid: coriander, spinach, eggplant, bitter gourd, carrot and green pepper; Wild vegetables in nature, such as amaranth, dandelion and purslane, also contain a lot of oxalic acid. Coriander, purslane and amaranth all contain more oxalic acid than spinach. The more astringent the vegetables you eat, the higher the oxalic acid content. People with unhealthy kidneys, especially kidney calculi patients, must eat less, not scalding or eating.
Nutrients in vegetables cannot be absorbed. Carrots contain a lot of carotene, which can be converted into vitamin A in human body. Vitamin A can improve skin resistance, make our skin smoother, make our teeth healthier, improve our eyesight and make our eyes brighter. However, the conversion of carotene into vitamin A requires oil blending. Eating and squeezing carrots raw can only let carotene pass through the intestine.
Fruit and vegetable juice reduces the dietary fiber in fruits and vegetables, which affects defecation, detoxification and beauty. Many people think that raw squeezed fruit and vegetable juice can retain a lot of dietary fiber with less processing capacity, which is a big mistake. After the vegetables and fruits are cold beaten by the cooking machine, the dietary fiber will be less and less, and the consumption of dietary fiber will be less than that of directly eating fruits or cooked vegetables. There are fewer and fewer dietary fibers in fruits and vegetables, and of course, the driving force for the intestines is not great, and the effect of laxative detoxification will be greatly reduced.