This article was reviewed by Lynn Marie Morski, MD, JD. There’s not much research on B12 shots for weight loss. People with obesity tend to have lower vitamin B12 levels, but it’s unclear if B12 shots ...

There’s not much research on B12 shots for weight loss. People with obesity tend to have lower vitamin B12 levels, but it’s unclear if B12 shots can promote weight loss. If you have a deficiency, B12 ...