It can be divided into many types according to different objects. At present, there are mainly two kinds of concerns, one is the trace elements in living things, and the other is the trace elements in abiotic things (such as rocks).
There are very few minerals in human body, and those less than 0.0 1% of human body weight are called trace elements. The human body needs few trace elements every day, but they are essential to the human body.
2. Yam powder can supplement some trace elements, but not many trace elements.
Yam is also called potato taro, potato medicine, Zhang Yan and Yuyan. Yam has been eaten in China for more than 3,000 years, and has always been regarded as a tonic. According to modern pharmaceutical analysis, yam is rich in starch, protein, choline, mucus and other ingredients.
The biggest feature of yam is that it can supply a large amount of mucin to human body, which has special health care function for human body. It can prevent fat deposition in cardiovascular system, prevent premature occurrence of vascular atherosclerosis, reduce subcutaneous fat deposition and avoid obesity.