how do you feel after vitamin b12 injection Best Sites: Where to Inject B12 · PA Relief Benefits of Vitamin B12 Shots

Inject intramuscularly

On my first 3 injection, I had swelling sensation but it was not very uncomfortable

A blood level above 900 to 1,000 pg/mL is generally considered elevated and warrants a conversation with your doctor, especially if youre not taking B12 supplements

In contrast, the passive diffusion process of B 12 absorption normally a very small portion of total absorption of the vitamin from food consumption may exceed the haptocorrin- and IF-mediated absorption when oral doses of B 12 are very large, with roughly 1% efficiency

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Top sources include meat, fish, eggs, dairy products, and fortified cereals or plant-based milk especially helpful for vegetarians and vegans