However, B12 in an injectable form may cause some negative side effects, such as: For healthy individuals who are not at risk for B12 deficiency, a well-rounded, nutrient-rich diet should provide all the B12 their bodies need
20 In the same year, Thakkar and Billa also compared the benefits of the different forms, and argued that methyl-B12 alone may not address the neurological complications in B12 deficiency that arise partly from the lack of adenosyl-B12
In each case, a provider should confirm a deficiency before starting treatment
The National Library of Medicine says these supplements contain a yellow or yellowish-orange powder
How to read a cell: A 10 mg vial + 2 mL water = 5 mg/mL
Reasons for Vitamin B12 Injections There are many reasons vitamin B12 injections may be prescribed or recommended