In certain cases, some studies have found links between high serum B12 levels and the following conditions: Certain cancers , including lung and liver cancer Liver dysfunction, as some research has found high levels of B12 in the bloodstream can indicate damaged liver tissue
Commonly Reported Injection site reactions some redness, swelling, or itching that clears up within 30 minutes
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My preferred prenatal vitamins (found here and here ) use the safer and more bioavailable forms of vitamin B12
As a result, your body will have a harder time making the hemoglobin thats needed to carry oxygen throughout your body
When you get B12 shots, a water soluble vitamin, it increases the metabolism in your cells