b12 100 mcg injection Vitamin Injection: Energy Boost and Anemia Treatment — Mountainside Medical or for certain illness or disease like anemia Vitamin B12 Injection - Single

PRE-CARE Preparing Your Results Mild soreness or redness at the injection site is normal and usually resolves quickly

Gordon B, Fogel L, Varma G, et al

With a bit of searching you can also find their corrected statement on B12 injections during Covid

So how do you know if you need vitamin B12 shots

Cardiovascular effects: Glucagon receptor agonism (via retatrutide) and GLP-1 receptor agonism have been associated with modest increases in heart rate as a class effect

But to ensure that you are not wasting your money at the very least, or endangering your body at worst, lets examine the efficacy of vitamin B-12 injections for weight loss