Nutritional deficiencies after gastric bypass surgery

J Am Osteopath Assoc. 2009 Nov;109(11):601-4.


Nutritional deficiencies are unrecognized in approximately 50% of patients who undergo gastric bypass surgery. The authors present some of the more common nutritional deficiencies and related complications that can occur in this patient population. Greater awareness of the potential effects of nutritional deficiency after gastric bypass surgery may help physicians better recognize and manage these challenging conditions.

Publication types

  • Review

MeSH terms

  • Calcium / deficiency
  • Copper / deficiency
  • Folic Acid Deficiency / etiology
  • Gastric Bypass / adverse effects*
  • Humans
  • Iron / deficiency
  • Nutrition Disorders / etiology*
  • Risk Factors
  • Vitamin D Deficiency / etiology
  • Zinc / deficiency


  • Copper
  • Iron
  • Zinc
  • Calcium