When it triggers an abnormal or vigorous immune responce, treating the antigen that would normally cause no threat as something harmful.
There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link : https://www.creative-biogene.com/Services/ion-channel-cell-line-development.html
This suggests subclinical deficiency
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Subclinical deficiency is a condition in which a nutritional deficiency that is capable of having an effect on an individual’s health is not severe enough to produce typical deficiency signs and symptoms. Subclinical deficiency is discovered only by biochemical changes and it can change to clinical deficiency if it is not treated.
Answer:because it comes from the earth. without any changes. all natural
Explanation: