Do vitamin B12 shots help lose weight?

About Dr. Chris Oh

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10/8/2011
Do vitamin B12 shots help lose weight?
I have recently had several weight loss patients ask me about vitamin B12 shots to lose weight. Traditionally vitamin B12 shots were given only to those with B12 deficiency (pernicious anemia). More recently, weight loss clinics have started giving shots to boost energy and metabolism. However there is no evidence that giving vitamin B12 shots to someone with normal B12 level causes weight loss.