What is not nutritious is pure water. Water (H2O) is electrolyzed to produce electrolyzed water. When current passes through water (H2O), hydrogen is generated at the cathode and oxygen is generated at the anode. The positively charged ions move to the cathode, and the minerals calcium, magnesium, potassium and sodium dissolved in water form at the cathode, which is the alkaline water we drink; The anode generates charged ions. Chlorine added to tap water is also discharged into the acid water of the anode. The electrolyzer is a kind of healthy water appliance, which is completely different from the water purifier including the water purifier. The function of water purifier and water purifier is only to purify tap water and make it a kind of safe water, which is only equivalent to the function of electrolyzer 1/5. Electrolyzer is usually equipped with purification system, which purifies water first, and then electrolyzes and deeply treats water on the basis of cleanliness and safety, so as to improve the function of water and treat water as a pair of human bodies. Electrolyzed water generally refers to alkaline water, which contains ionic minerals that are more easily absorbed. Because of its negative potential, it has oxidation resistance and meets the standard of good water recognized by the World Health Organization.