Some people believe that B12 can boost energy and help with weight loss in everyone, but this is based on a misunderstanding
Specifically, the oxygen tension of the kidney cortex and medulla has been shown to be approximately 10 mm Hg lower than normal in spontaneously hypertensive rats and other models of hypertension as well as in hypertensive patients

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Its important to note that vomiting can be an early warning sign of pancreatitis, a serious inflammation of the pancreas that requires medical attention