This is because hemoglobin (a blood protein) gets much darker as it passes through the gastrointestinal tract and is exposed to digestive enzymes that break it down
Riebe, O., Fischer, R.J., Wampler, D.A., Kurtz, D.M., and Bahl, H., Microbiology , 2009, vol
In simple terms: It doesnt just treat patients
Examples include: Advertisement Long-term low vitamin B12 levels caused by pernicious anemia can affect your nervous system
Benviste MF, Sabloff BS, Marom EM, Moran CA, Swisher SG , Rosado-de-Christenson ML
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