Our body is a dynamic system that is constantly exchanging matter with its surroundings: taking in something and giving out something else. To function and maintain itself properly it needs substances of different types in large or small quantities.
Those minerals and chemicals needed in smaller quantities are called micronutrients. They play a vital role in metabolism and their deficiency in the body can lead to various diseased states. Therefore, it is of paramount importance for a physician to know these nutrients and their deficiency diseases, as a simple substitution in diet can correct the disorder without any medication (as they are mainly because of errors of diet and act as maintaining causes in treatment of chronic illnesses). The physician can effect a ‘cure’ even without any medicine. Below is a comprehensive but not exhaustive list of various micronutrients and their dietary sources that a physician can advise to her/his patients and prevent deficiency diseases, by simply advising a nutritious healthy diet.
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He is likewise a preserver of health if he knows the things that derange health and causes disease, and how to remove them from persons in health)
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