If You Take Metformin, You May Need More B12

Metformin, also called Glucophage, is prescribed to more than 120 million people with diabetes worldwide. The drug works by reducing the amount of glucose produced by the liver and by increasing a patient’s sensitivity to insulin. However, a recent study found that in about 10% of patients taking metformin, it is also causing varying degrees of vitamin B12 deficiency. Read more

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