Aluminum is one of the essential trace elements for human body. Medical circles believe that the total content of aluminum in human body is about 100mg. The existence of trace aluminum in human body can prevent excessive absorption of phosphorus by intestine, reduce blood phosphorus content, and prevent the increase of blood phosphorus, soft tissue calcification and kidney calculi formation caused by secondary hyperparathyroidism.

Generally speaking, aluminum ions in food are enough to meet the needs of human body. If you use aluminum tableware for a long time, especially when cooking in aluminum pot, there will be excessive aluminum ions in your body. Excessive aluminum intake will be harmful to the body and affect memory, especially for the elderly.