Question

Which of the following is FALSE about surgical treatments for obesity?

a. Gastric bypass surgery results in gut hormone changes that increase satiety, while sleeve gastrectomy does not affect gut hormone levels.
b. Gastric bypass reduces food intake due to the smaller volume of the stomach pouch postsurgery.
c. Gastric bypass decreases nutrient absorption because a portion of the small intestine is bypassed.
d. Sleeve gastrectomy promotes a reduction in food intake because the size of the stomach is decreased.
e. Much of the duodenum is bypassed after gastric bypass surgery.

Answer 1

Gastric bypass surgery decreases nutrient absorption because a portion of the small intestine is bypassed.

Step-by-step explanation:

c. Gastric bypass decreases nutrient absorption because a portion of the small intestine is bypassed.

Gastric bypass surgery rearranges the digestive system to limit the amount of food that can be eaten and the absorption of nutrients. It involves creating a small pouch from the stomach and bypassing a portion of the small intestine. This bypass reduces the surface area available for nutrient absorption, resulting in decreased nutrient absorption.

Example: After gastric bypass surgery, the ingested food directly enters the jejunum, bypassing a significant portion of the duodenum, which is responsible for nutrient absorption. As a result, the body absorbs fewer nutrients from the food.