Vitamin B12 mainly exists in meat, soybeans in plants and some herbal medicines also contain B12, intestinal bacteria can be
synthesized, so it is not lacking in general, but B12 is easy to lack of vitamin in digestive tract diseases, but also an
indispensable important element of red blood cell formation, if seriously lacking, will lead to pernicious anemia!
synthesized, so it is not lacking in general, but B12 is easy to lack of vitamin in digestive tract diseases, but also an
indispensable important element of red blood cell formation, if seriously lacking, will lead to pernicious anemia!