Watch B12 Levels If You Take Metformin or Antacids

The Joslin Diabetes Center apparently
has some doubts about metformin causing vitamin B12 deficiency.
Studies have shown that long-term metformin use causes about 30
percent of patients to develop B12 deficiency. Yet, Joslin believes
that food is the answer and waits until the last two paragraphs to
discuss to problems that vitamin B12 deficiency can cause. They even
try to minimize the