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Updated: Jan 19, 2026
A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
Selenium Status after Roux-en-Y Gastric Bypass: Interventions and Recommendations
Mohadeseh Hassan Zadeh1, Gholamreza Mohammadi Farsani1,2, Negar Zamaninour3
1Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran.
Background:
Selenium is an essential element that plays a vital role in maintaining human health and its deficiency can lead to cardiovascular and hypothyroidism complications. In this context, the main concern is about morbidly obese patients who undergo a Roux-en-Y Gastric Bypass (RYGB). Although RYGB leads to 60-70% excess weight loss, micronutrient deficiencies are common after this procedure and can be problematic if not promptly detected. This review will therefore examine the evidence regarding selenium deficiency in RYGB patients, as well its nutritional treatment methods.
Methods:
There were a total of 6 studies regarding RYGB and selenium deficiency, which were retrieved from PUBMED and SCOPUS electronic databases, ranging from 2006 to 2017.
Conclusion:
Selenium deficiency was observed before and after RYGB. Lifelong supplementation and regular patient monitoring after surgery are recommended.
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