How Vitamin Injections Compare to Oral Supplements Oral supplements can be helpful, but they must pass through the digestive system first
Therefore, even though B12 may come in more concentrated dosages with oral administration, the IM shots still provide the best way to correct B12 deficiency
Age Older individuals may take longer to notice benefits due to decreased absorption and metabolic rates
But Kristin Zimmerman, associate professor in the department of pharmacotherapy and outcomes science at Virginia Commonwealth Universitys School of Pharmacy in Richmond, grew suspicious several years ago when her mom, who was in her late 60s and living on Floridas Gold Coast, quietly signed up for vitamin B12 injections from a new wellness clinic that had opened at the local mall
That said, everyone's body is different
You should only use sterile water if you plan to use the entire contents of the vial in a single instance