Are calcium and magnesium ions harmful to the human body?

I wonder if you have noticed that when you boil water in your life, there will be a layer of white sediment at the bottom of the boiling water. This layer of sediment is called scale. The main content in the water is calcium and magnesium ions. If there are too many calcium and magnesium ions, scale will be produced. So, will too much calcium and magnesium ions in food be harmful to the human body? Let me introduce to you

Generally speaking, if the calcium and magnesium ion content in water is too high, there will usually be a layer of floating matter after the water is boiled. This is because salt precipitation is formed due to the high hardness of the water. No harm to human body. Many people have previously claimed that excessive calcium and magnesium ions in water can cause tuberculosis. This statement fooled many people. I found the answer in Dr. Batman's book "Water is the Best Medicine". The same confirmation was found in the book "Is Water Medicine or Poison" by Professor Li Fuxing, a water expert in our China.

The hardness of water is too high, which has no direct harm to the body, but brings a lot of trouble to our life. For example, a layer of scale forms in a kettle or a commonly used water cup. White clothes turn a little yellow after washing, etc. In fact, it is not the calcium and magnesium ions in scale that cause health hazards! This is mainly because the heavy metal ions and aluminum ions in it are toxic! Regular drinking can cause diseases of the digestive, nervous, urinary, circulatory systems and cause aging. This is because the scale contains more harmful metal elements such as cadmium, mercury, arsenic, aluminum, etc. Tap water itself contains only trace amounts of heavy metal ions, which are not harmful to the human body. However, scale formed by boiling water in a kettle for a long time is the result of repeated accumulation! Then the heavy metal ions will definitely exceed the standard!

Scale is the sediment of heavy metals, calcium salts, dust, bacteria, insect eggs, etc. mixed in water. It is not only unhygienic, but also seriously affects human health. According to chemical analysis, the scale contains 12 micrograms of lead, 21 micrograms of arsenic, 44 micrograms of mercury, 3.4 micrograms of cadmium, and 24 micrograms of iron. There are a large number of heavy metals in scale. Medical practice has shown that long-term intake can cause heavy metal poisoning in the human body, and many heavy metals can cause cancer in human organs. Scale affects human health, easily causing gastrointestinal digestion and absorption disorders and dry stool, and increasing the incidence of gastritis and various types of tuberculosis. Tartar and periodontitis are often caused by scale and can be fatal. Legionnaires' disease, for which there is still no vaccine, lurks in scale and kills 2,000 to 3,000 people in France every year. Moreover, scale is insoluble in water only relatively speaking. When the water is heated, some of the precipitate will dissolve, which will bring the heavy metal ions that formed the precipitate back into the water, causing the content of heavy metal ions in the water to exceed the requirements of hygiene standards and endanger human health. For example, large amounts of calcium carbonate and magnesium carbonate are easily deposited in the human body and can easily form tuberculosis. Scale hides more hidden dangers. Washing your face or taking a bath with water containing scale will form calcium-magnesium soap, which is as sticky as colloid and sticks to your face and skin, making it difficult to remove dirt. If the dirt is not washed away, it will clog the opening of the skin glands, forming an embolism, affecting normal metabolism and causing the skin to shrink and age prematurely.