what is better vitamin b12 tablets or injections You Need to Know About B12 Injections vs Oral Supplements:

The ideal injection site depends on your age and the comfort level of the person administering the injection

In the cardiovascular system, due to the vasorelaxation, arginine supplementation can cause a reduction in systolic and diastolic pressures in patients with high blood pressure, provides a positive effect on brain circulation and can enhance blood flow to males with erectile dysfunction

Sources: www.popsci.com/why-does-my-arm-hurt-day-after-i-get-my-flu-shot

Measuring serum biomarkers such as B 12 or MMA is neither helpful nor indicated in assessing or monitoring clinical improvement

And if the PA is so far advanced that there is no intrinsic factor left, the antibodies can disappear

To lower vitamin B12 levels, stop taking B12 supplements, eat less B12-rich foods, and address any underlying health issues if needed