Just after fat loss process, sustaining adequate vitamin B12 concentrations is important since the surgical procedure alters your gastrointestinal tract, impairing natural B12 absorption. B12 supports nerve purpose, blood cell output, and DNA synthesis; deficiencies can result in neurological problems and anemia. Ongoing supplementation with large-dose B12 and regular monitoring http://www.amazon.com/Bari-B12-Max-Methylcobalamin-Bariatric-Friendly/dp/B0FK1345B9