To administer via injection, clean the injection site with an alcohol swab, pinch the skin to create a fold, insert the needle at a 45-90 degree angle, slowly inject the solution, then withdraw and apply gentle pressure
Initial application of the regimen that was used in drinking water
Clinical deficiency with clearly low blood levels affects a smaller percentage, but a much larger group falls into a gray zone where levels are low enough to cause subtle symptoms without triggering an obvious diagnosis
The underlying biochemistry is real
User 21 is a cautionary case: his first vial worked, but his next two caused diarrhea, dizziness, nausea, and headaches
References inline (PubMed / NEJM citations as available)