b12 injection site is warm Best Vitamin Sites: Where to Inject B12 · PA Relief Is Your Injection Site Reaction

It also plays a role in energy homeostasis and cellular metabolism

It is also best to have the B vitamins during the morning time since they might be able to transfer food into energy and make you stay awake all day

doi:10.1007/s11064-012-0895-x Lin JB, Apte RS

Vitamin B12 deficiency can also cause symptoms that affect the brain and nervous system (neurologic symptoms), including: Numbness Muscle weakness Mental health problems, ranging from mild depression or anxiety to confusion and dementia Balance and coordination issues Needles and pins Incontinence What is the best form of vitamin B12 to take

The time it takes for vitamin B12 (cobalamin) treatment to produce noticeable effects varies considerably depending on the severity of deficiency, the route of administration, and individual patient factors

Many patients choose injections to bypass digestion and ensure direct absorption