Nutrient Deficiencies and Supplementation Post Gastric Bypass Surgery
Nutrient Deficiencies:
 • Most frequent in the malabsorptive surgeries - RYGB, BPD-DS and MGB
 • Most common are Vit D, folate, iron, B12 and zinc
 • Selenium, niacin, Vit B6, Vit C and Vit K are rare
High-risk Individuals:
 • Persistent nausea, vomiting, diarrhea and SIBO
 • Excessive weight loss > 1-2 years
 • Pervasive neurologic symptoms
 • Pre-existing inappropriate eating behaviors and alcohol
Nutritional Screening:
 • CBC, electrolytes - Mg, Phos, Ca+, Bl, B12, Vit D, Folate, Zn, Selenium
 • Ferritin, Transferrin Sat.
 • Bone densitometry testing and PTH q2 yrs
 • Vit A & Retinol binding protein, Vit E, Copper, 24hr Ur Ca (BDP-DS and MGB)

by Chuma G. Obineme, MD @TypicallySilent via Emory Gastroenterology and Hepatology @EmoryGastroHep

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