Vitamin B12 has long been viewed as one of the body’s most important nutrients. It helps maintain healthy nerves, supports the production of red blood cells, and plays a key role in creating and repairing DNA. Doctors often recommend B12 supplements for people who do not get enough through food, especially vegans, older adults, and […] The post The Vitamin B12 Debate: Why More Is Not Always Better appeared first on Knowridge Science Report .