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Hypocarotenemia after bariatric surgery: a preliminary study.

F Granado-Lorencio1, C Herrero-Barbudo, B Olmedilla-Alonso

  • 1Unidad de Vitaminas, Servicio de Bioquímica Clínica, Hospital Universitario Puerta de Hierro, 28035, Madrid, Spain. fgranado.hpth@salud.madrid.org

Obesity Surgery
|March 29, 2008
PubMed
Summary

Obesity surgery significantly depletes serum carotenoids, especially after biliopancreatic diversion. This deficiency may increase health risks, highlighting the need for dietary carotenoid supplementation post-surgery.

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Area of Science:

  • Nutritional Science
  • Bariatric Surgery Outcomes
  • Carotenoid Metabolism

Background:

  • Dietary carotenoids are linked to preventing age-related maculopathy, osteoporosis, cardiovascular disease, and cancer.
  • Obesity surgery is a primary treatment for severe obesity, but often leads to nutrient deficiencies with unknown long-term effects.

Purpose of the Study:

  • To assess the serum carotenoid status in patients following obesity surgery.

Main Methods:

  • Serum levels of lutein, zeaxanthin, cryptoxanthins, lycopene, and carotenes were measured using high-performance liquid chromatography.
  • 53 patients were monitored post-Roux-en-Y gastric bypass (RYGBP) or biliopancreatic diversion (BPD), with follow-up times of 18 and 14 months, respectively.

Main Results:

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  • A consistent decline in all measured carotenoids was observed after obesity surgery, reaching near-undetectable levels.
  • Patients undergoing biliopancreatic diversion (BPD) showed significantly lower carotenoid levels (one-half to one-third) compared to Roux-en-Y gastric bypass (RYGBP) patients.

Conclusions:

  • Post-bariatric surgery hypocarotenemia may impair carotenoid tissue availability and vitamin A status, reducing antioxidant capacity and increasing clinical risks.
  • Dietary recommendations for carotenoid-rich foods or supplements should be considered for patients after bariatric surgery due to the role of carotenoids in disease prevention.