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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
Rotate sites : Don't inject the same spot twice in a row Needle : 29-31 gauge insulin syringe, 1/2 inch needle Common Beginner Mistakes to Avoid Starting too high : 2mg+ on week 1 = miserable GI sides
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