Gastric Sleeve

With Vertical Sleeve Gastrectomy (VSG), approximately 60% of the stomach is removed leaving the remaining portion of the stomach in a sleeve-like shape.

Nutrient deficiencies may arise due to:

Reduced stomach volume
Reduced dietary intake
Decreased capacity for digestion due to changes in stomach size
Reduced gastric acid (use of PPIs, and reduced volume)

Source: Aarts, Edo O, Ignace M, Janssen C, Berends FJ. The Gastric Sleeve: Losing Weight as Fast as Micronutrients? Obesity Surgery 21.2 (2011): 207–211. PMC. Web. 27 Feb. 2017.

Post Operative Bariatric Nutrition: Gastric Sleeve

Nutritional Deficiencies

Pre and Post Bariatric Surgery/Procedure

	Pre-Surgery	Post-Surgery
Protein	X	X
Calcium		X
Vitamin A	X
Vitamin B1 (thiamin)	X	X
Vitamin B6 (pryidoxine)	X
Vitamin B12 (cobalamin)	X	X
Folate	X	X
Vitamin C	X
Vitamin E	X
Vitamin K
Vitamin D	X	X
Iron		X
Magnesium
Potassium
Zinc	X	X
Selenium	X
Copper

Nutritional deficiencies table shows deficiencies more commonly reported in research studies. For more information about deficiencies by procedure, and how these were identified, visit the resources section of Bariatric Advantage.