how often do you take b12 injections Shots at Home: How, Where & to Inject Yourself B12 Injection Dosage and Frequency:

A deficiency can affect the nervous system and cause sensations such as numbness or tingling in the hands, feet, or legs

RELATED The Bottom Line Your body needs vitamin B12 to create red blood cells and DNA, and to keep your brain and nervous system in top shape

Side effects are generally mild and uncommon

A B12 shot is an intramuscular injection of vitamin B12 , a crucial nutrient that helps with: Red blood cell production Nervous system function DNA synthesis Metabolism of carbohydrates, fats, and proteins Vitamin B12 is found in animal-based foods, so deficiencies are especially common in vegetarians, vegans, and individuals with absorption issues