disadvantages of b12 injections Vitamin Injection Side Effects and Safety Vitamin B12 Injections: What You

Also read: Choosing the Right Vitamin B12 Supplement: What You Need to Know

Retrieved September 30, 2025, from link National Institutes of Health, Office of Dietary Supplements

You may also experience numbness and tingling in the hands and feet, balance problems, memory loss and confusion

People with Lebers hereditary optic neuropathy, a rare inherited optic nerve disorder, may be at risk of severe optic nerve damage with cyanocobalamin

Your internal levels peak

More energy An increasing number of people are turning to B12 injections as a way to boost energy, often so they can get more exercise and lose weight in the process