By what principle are the chemical elements that make up living systems divided into macro – and microelements?

Approximately 96% of the human body’s mass is made up of just four elements: oxygen, carbon, hydrogen and nitrogen, with many of them in the form of water. The remaining 4% is a rare sample of the periodic table of elements.

Some of the more well-known representatives are called macronutrients, while those that only appear at the ppm level or less are called micronutrients.

These nutrients serve a variety of functions, including building bones and cellular structures, regulating body pH, carrying charge, and leading to chemical reactions.