A friend of yours is complaining that every time he eats ice cream, a good cheesey pizza, or really, any dairy products, he experiences very painful abdominal cramping, gas, and diarrhea.

(a) What is the likely cause of your friend’s problem (name the condition and explain it physiologically), and how would this result in the observed symptoms? (link this condition to ALL listed symptoms)

(b) How could your friend’s condition be treated?

(c) In the meantime, what kinds of dietary suggestions might be made, and why would those suggestions be made?