Baumann is an endocrinologist, now professor emeritus at Northwestern University
Vitamin B12, supplied via food or oral supplements, can be absorbed by the body in two different ways (4): Through the transport protein called intrinsic factor in the small intestine Through passive diffusion in the mucosa membranes of the mouth and small intestine The maximum absorption ability through the intrinsic factor is somewhere between 1.5 2 g per meal
Some patients see noticeable changes on the scale
NIST describes certified reference material documentation as including property values, uncertainty where applicable, and traceability information, which underscores why documentation must be specific rather than generic [8]
B12 supplementation is extremely safe with no established upper limit for toxicity
Choosing the Right Injection Site Ideal SubQ Sites: Abdomen 2 inches away from the navel Thighs front of the upper leg Upper arms back of the upper arm (best if done by someone else) Rotate Sites Consistently: Using a rotation chart prevents repeated trauma and allows the tissue to recover