Phillips said those questions need to be answered. But, he said, this is still "an exciting early study" that opens the door toward greater understanding of genes and weight.
The study appeared online May 27 in the Proceedings of the National Academy of Sciences.
[See Best Weight-Loss Diets.]
For more about gastric bypass surgery, try the U.S. National Library of Medicine.
Copyright © 2012 HealthDay. All rights reserved.