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Related Experiment Video

Updated: Jun 14, 2026

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Published on: March 20, 2017

Micronutrient deficiencies after bariatric surgery.

Padmini Shankar¹, Mallory Boylan, Krishnan Sriram

¹Department of Health and Kinesiology, Georgia Southern University, Statesboro, Georgia, USA. pshankar@georgiasouthern.edu

Nutrition (Burbank, Los Angeles County, Calif.)

|April 6, 2010

Summary

Bariatric surgery patients face lifelong risks of micronutrient deficiencies. Lifelong supplementation and regular monitoring of nutrient levels are crucial for maintaining optimal health post-surgery.

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Last Updated: Jun 14, 2026

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Published on: March 20, 2017

Area of Science:

Bariatric Surgery
Nutritional Science
Gastroenterology

Background:

Bariatric surgery is increasingly common for morbid obesity.
Gastrointestinal tract modifications impact nutrient absorption.
Healthcare providers must recognize potential micronutrient deficiencies.

Purpose of the Study:

To review literature on micronutrient deficiencies after bariatric surgery.
To identify at-risk nutrients and recommend supplementation strategies.
To highlight the importance of preconception care and monitoring.

Main Methods:

Systematic literature review of multiple databases and websites.
Search conducted from January 1980 to July 2009.
Keywords included bariatric surgery, obesity, and nutrient deficiencies.

Main Results:

Patients are at risk for deficiencies in vitamins B12, B1, C, folate, A, D, K, and minerals iron, selenium, zinc, copper.
Standard supplements may be inadequate; lifelong, high-dose supplementation is often required.
Deficiencies pose risks during pregnancy, impacting maternal and fetal health.

Conclusions:

All bariatric surgery patients need daily multivitamin and multimineral supplements.
Lifelong prophylactic supplementation and regular serum nutrient monitoring are essential.
Special attention to prenatal supplementation is critical for pregnant patients.