can a b12 injection make you feel sick Feeling worse after Injection: Answering concerns B12 Shots at Home: How,

I noticed that it happened after receiving my COVID vaccines and booster in the same arm as well

Excess B12 from oral supplements is poorly absorbed at high doses (the body absorbs roughly 1 to 2% of a 1,000 mcg oral dose) and the remainder is excreted in urine

This essential vitamin plays a vital role in brain function, nervous system, the production of DNA and red blood cells, as well as enhancing the activity of certain immune cells and can help with weight loss

Super Vitamin B12 | Intramuscular Injection Vitamin B12 is a crucial nutrient that helps your body produce red blood cells, maintain healthy nerve function, and convert food into energy

The fact is, however, although B12 injections may help, they wont solve all of your problems