Vignette #1 Sue and Juan are newlyweds, and Sue is taking a nutrition course at the local college. She wants to apply the principles that she has learned. Juan is currently a bit overweight and rarely eats a balanced diet. Sue notices that he usually has gas after meals, especially when dairy is present. Lately, he has also been complaining about constipation. Let's see what you can do to assist Sue in her efforts to analyze Juan's digestive problems.
Why might Juan have gas after eating dairy products?
A) He eats dairy products with vegetables at the same meal.
B) Bacteria in his colon digest the lactose, producing gas.
C) The lactose from the milk remains in his stomach and creates gas.
D) His body does not make enough sucrase to digest the dairy sugar.
E) His body produces too much lactase, resulting in gas formation.

Question

Quizplus · Accepted Answer

Gas formation after eating dairy products is commonly due to lactose intolerance. This occurs because the body lacks the enzyme lactase needed to break down lactose, a sugar found in milk and dairy products. Undigested lactose in the colon is fermented by bacteria, which produces gas as a byproduct.

Vignette #1 Sue and Juan Are Newlyweds, and Sue Is