Shots and pills of vitamin B12 are popular among individuals hoping for a rapid weight-loss remedy. Some even believe that boosting your vitamin B12 level will help you reduce exhaustion, increase your energy, and speed up your metabolism. However, studies on the benefits of this vitamin on weight loss have yielded conflicting findings.
Vitamin B12 is a water-soluble vitamin essential for brain function, heart health, red blood cells and DNA formation. Some research states that vitamin B12 levels in the blood are related to reduced obesity in children and adults. Furthermore, animal studies show that it may impact body fat and metabolism.