B12 shots will benefit only those with a B12 deficiency and people with some underlying conditions. No research indicates that B12 shots will help with weight loss or benefit healthy individuals. B12 ...

Although some people claim vitamin B12 shots can help with weight loss, experts do not recommend them. They can cause side effects and, in some cases, allergic reactions. According to a 2019 study, ...

Most people have healthy levels of vitamin B12. But some don’t. What you do or don’t eat, along with certain health conditions and medications, could be the reason why. When left untreated, a B12 ...