Scientists are uncovering new reasons why vitamin B12 is so important, beyond its well-known role in preventing anemia. Credit: Shutterstock Two micrograms is an almost unimaginably small amount. It weighs less than a tiny fragment of a grain of table salt. Yet adults need only around this amount of vitamin B12 each day, depending on the guideline used, to support red blood cells, nerves and DNA production. In 2026, it is 100 years since George Minot and William Murphy reported that a liver-

Tag-uri: DNA