Oral Vitamin B12 Supplementation After Roux-en-Y Gastric Bypass: a Systematic Review.

Kamal K MahawarAlastair ReidYitka GrahamLindes Callejas-DiazChetan ParmarWilliam Rj CarrNeil JenningsRishi SinghalPeter K Small

Published in: Obesity surgery (2019)

The review finds that oral supplementation doses of ≤ 15 μg vitamin B12 daily are inadequate for prophylaxis of vitamin B12 deficiency in adult RYGB patients but doses of 1000 μg vitamin B12 daily might be adequate. Future studies need to examine this and even higher oral doses for vitamin B12 supplementation for patients undergoing RYGB.

Keyphrases

roux en y gastric bypass
weight loss
gastric bypass
patients undergoing
obese patients
end stage renal disease
physical activity
ejection fraction
chronic kidney disease
bariatric surgery
prognostic factors
peritoneal dialysis
replacement therapy
patient reported