We eat every day but what happens after the food leaves our mouths is mostly a mystery to many of us. Find out how your digestion knowledge stacks up with this digestive quiz.
Question 1 of 9
How long does it take to digest an average meal?
Question 2 of 9
How much saliva do you produce each day?
Question 3 of 9
How many servings of fruits, vegetables and whole grains should you eat daily?
Question 4 of 9
What is the maximum daily recommended percentage of calories from fat?
Question 5 of 9
How much do Americans spend on laxatives each year?
Question 6 of 9
Why is fiber essential to a healthy digestive tract?
Question 7 of 9
What is the most common digestive illness seen by doctors today?
Question 8 of 9
How much money do Americans spend on dietary supplements each year?
Question 9 of 9