I was just reading this webpage: gutsense.org/gutsense/ibs.html
and I came across this sentence: "Vitamin K deficiency is behind internal bleedings, pernicious anemia, inoperable ulcers, and strokes."
While I'm not entirely familiar with the properties of vitamin K, I did recognize immediately that a vitamin K deficiency is not a cause of pernicious anemia. I have emailed the author and asked him to correct the mistake.
Sometimes it seems like misinformation is the hardest thing to correct, but imagine if someone believed that statement and took a bunch of vitamin K instead of B12!