Drinking lemon water at night does not turn black, lemon contains a lot of vitamin C, vitamin C has antioxidant properties, not only can delay the aging of cells, but also help skin whitening, lemon also has a certain anti-inflammatory effect, can treat the skin due to ultraviolet sunburn, repair damaged cells, make the skin white, vitamin C can not only help whitening, but also can promote digestion of the intestines, strengthen the body’s Vitamin C not only helps to whiten the skin, but also promotes digestion and strengthens the metabolism of the body, so that the toxins in the body can be discharged and the phenomenon of dark skin caused by the accumulation of toxins can be reduced. Although drinking lemon water at night does not become black, but if you drink too much lemon water, it is easy to cause the stomach and intestines to produce too much gastric acid, too much gastric acid can easily lead to acid reflux and stomach disease, and if you drink too much lemon water at night, it will make the intake of water too much, leading to wake up with edema symptoms.