Subsequently, German internist Arnold Cahn (1858-1927) and German physician and physiologist Josef Freiher von Mering (1849-1908), working in the Strassburg clinic of German physician Adolf Kubmaul (1822-1902), showed that a patient with pernicious anemia had no hydrochloric acid in the stomach contents, a finding later demonstrated to be pervasive in this disorder and to precede the development of anemia (139)
Vitamin B12 deficiency causes fatigue and other ME/CFS-like symptoms so it should be excluded before a diagnosis of ME/CFS is made, especially in people where there is no clear infective onset
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Injectable vitamin b12 delivers stable amounts that your body can access quickly
Consider B12 if you're experiencing: Low brain function Low energy levels Inconsistent sleep patterns Benefits of B12 Shots Not only are B12 shots quick and easy, but they are also versatile for improved physical and mental well-being
Concentration refers to the proportion of waste products to water