Small intestinal bacterial overgrowth is associated with irritable bowel syndrome and is independent of proton pump inhibitor usage
Specifically, nerve damage caused by vitamin B12 most often affects the extremities (hands and feet)
Understanding and Managing Side Effects Monitoring and Reporting Be sure to watch how your body reacts to Vitamin B12 injections
When your body has the nutritional foundation it needs, recovery tends to be smoother, skin quality improves, and overall vitality supports better outcomes across the board
BloodBrain Barrier Breakdown in Alzheimer Disease and Other Neurodegenerative Disorders. Nature Reviews Neurology 14: 133150
I have also accessed other sites for my B12 injections, including, the upper arm (deltoid), thigh (vastus lateralis), and the buttocks (dorsogluteal)