can you take too much b12 injections get vitamin injection CB12 Injection: Uses, Benefits, and Dosage Guide Symptoms of B12 Overdose: Causes

it is used here only as a general analytical-science reference and does not automatically establish mandatory release specifications for an RUO research reagent

2021, ods.od.nih.gov/factsheets/VitaminC-HealthProfessional/

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While sufficient amounts are often obtained through diet alone, some conditions prevent the body from using Vitamin B12 to ensure their body functions normally, especially in older adults and You may need Vitamin B12 supplements if you have poor nutrition, HIV, cancer, pregnancy, celiac disease, alcoholism, stomach problems, age and vegan diets that restrict animal products and rely on plant foods

For example, the average prenatal supplement does not provide adequate levels of Vitamins A, E, or C to meet the recommended daily requirements for lactating women and may provide too much iron for a mother whose iron stores have recovered from delivery

Methylmalonic acid is especially helpful when standard B12 levels appear falsely elevated but symptoms remain