Vitamin B complex has benefits for metabolism, energy production, and red blood cell development. You need B vitamins to prevent deficiency and certain health issues. Several foods, like meat ...

Like most supplements, vitamin B complex can cause side effects, depending on the dose and type of vitamin B. Find a list of ...

Supplements and injections are effective ways to treat vitamin B12 deficiencies. These are the benefits and potential ... work well if you have a vitamin B-12 deficiency. When this happens ...