Close to 1.8 billion people worldwide are infected with Mycobacterium tuberculosis (Mtb), the common and occasionally deadly bacterium that causes millions of cases of tuberculosis each year. The bacteria, having coevolved with humans over millennia, have devised ways of hijacking nutrients from its human host for its own benefit. Humans have equally complex ways of...
Tag: <span>vitamin B12</span>
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Can you have too much vitamin B-12?
By Rachel Nall, MSN, CRNA Reviewed by Alana Biggers, MD, MPH Some people may worry that supplements containing large amounts of vitamin B-12 could be harmful. However, although some supplements — such as vitamin A or D — can be harmful if a person takes them in excess, vitamin B-12 seems safe in large doses. Vitamin...
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Study highlights danger of vitamin B12 deficiency
Rice University researchers found vitamin B12 promotes survival during infection by improving mitochondrial health. The expression of a fluorescent protein (top left) reflects buildup of a toxic metabolic product, propionate, in mitochondria on diets low in B12, as compared (bottom left) to those receiving sufficient B12. Mitochondrially targeted fluorescent protein (center) reveals fragmentation of mitochondria when B12 is low, and dead worms...
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Who needs vitamin B12 shots and why?
Vitamin B12 shots are injections that can be prescribed to treat a vitamin B12 deficiency. A deficiency in this essential nutrient can lead to an array of health problems, ranging from fatigue to permanent neurological changes. This article addresses the importance of maintaining adequate B12 levels and outlines the benefits and risks associated with B12 shots....
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