Gastric Bypass Surgery: Which Nutrients Will Be Difficult To Absorb? - Dr. Liu (VIDEO)

Dr. Liu:
Gastric bypass patients really don’t malabsorb nutrients. They are going to absorb every calorie that the person swallows with the gastric bypass. They only malabsorb certain vitamins and minerals. So it’s going to be mainly vitamin B12, because we’re bypassing the stomach and the stomach plays a big role in helping our bodies absorb vitamin B12. And they malabsorb iron and calcium mainly because iron and calcium absorbed from the acid environment and from the front part of the small intestine, which we bypass.

So those are the three things we know that the patients have to supplement in order to make up for that deficiency. But in terms of calorie or amino acid or protein, patients absorb all of that, all of which they actually chew and swallow, will be absorbed. And that’s one thing that patients need to remember is that, every calorie that is swallowed will be absorbed in the gastric bypass procedure.

About Dr. Carson Liu, M.D., F.A.C.S.:
Dr. Liu received his medical degree from the University of Chicago, Pritzker School of Medicine and completed his internship, residencies and research fellowship at UCLA Medical Center. In 1998, Dr. Liu was appointed Assistant Professor of Surgery at UCLA Medical School where he continued to hone his skills in clinical practice, teaching and research. Dr. Liu has conducted extensive research and is widely published in the fields of Bariatric and gastrointestinal surgery; he is nationally recognized in his field and has lectured extensively to professional societies on these subjects. Dr. Liu is board certified in General Surgery and over the course of his career has performed more than 2600 bariatric surgeries.

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