Doctors receive a very one-sided education
and are taught to think in a different way.
Deficiencies as a cause of illness is not part of their training.
And this is something very difficult for doctors to face.
During their studies, medical students do learn about scurvy*, beri-beri** and the English disease (Rachitis)***.
But these are extreme cases of shortages of respectively vitamin C, vitamin B1 and vitamin D.
It is not explained to them that between a healthy body without deficiencies and these serious conditions many gradients sit.
And then there are many more physical situations that can be caused by other deficits and combinations of deficits.
It is safe to say that the countless disorders that mankind suffers from are caused by deficiencies.
If deficiencies are a major physical cause of diseases, we can say that prevention fairly simple is.
If we prevent deficiencies, we prevent many illnesses.