Managing micronutrient deficiencies in the bariatric surgical patient

Robert F Kushner*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations


Bariatric surgery is associated with development of several micronutrient deficiencies that are predictable based on the surgically altered anatomy and the imposed dietary changes. The three restrictive-malabsorptive procedures-Roux-en-Y gastric bypass, biliopancreatic diversion, and biliopancreatic diversion with duodenal switch, pose a greater risk for micronutrient malabsorption and deficiency than the purely restrictive laparoscopic adjustable gastric banding. The newer laparoscopic gastric sleeve (LGS) procedure poses a unique risk due to partial resection of the stomach. Metabolic and clinical deficiencies of two minerals (iron and calcium) and four vitamins (thiamine, folate vitamin B12, and vitamin D) have been well described in the literature. Deficiency of vitamin A and copper are reported less often. This chapter reviews the pathophysiology, clinical presentation, screening tests, and treatment for each micronutrient deficiency. With careful monitoring and adequate supplementation, these deficiencies are largely avoidable and treatable.

Original languageEnglish (US)
Title of host publicationTreatment of the Obese Patient
PublisherSpringer New York
Number of pages16
ISBN (Electronic)9781493912032
ISBN (Print)149391202X, 9781493912025
StatePublished - May 1 2014

ASJC Scopus subject areas

  • General Medicine


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