In order to take this quiz, you need to write your answers on a piece of paper and confront it with the answers posted at the end of this test.
Good luck!
1. How long does it take to digest an average meal?
- 8 to 12 hours
- 12 to 24 hours
- 48 hours
2. How much saliva do you produce each day?
- 1 cup
- 4 cups
- 6 cups
3. How many servings of fruits, vegetables and whole grains should you eat daily?
- 1 serving
- 3 servings
- 5 servings
4. What is the maximum daily recommended percentage of calories from fat?
- 20 percent
- 30 percent
- 40 percent
5. How much do Americans spend on laxatives each year?
- $10 million
- $100 million
- $1 billion
6. Why is fiber essential to a healthy digestive tract?
- It acts as a natural laxative.
- It fills you up so you don’t overeat.
- It keeps food moving through the digestive tract.
- All of the above.
7. What is the most common digestive illness seen by doctors today?
- Irritable bowel syndrome
- Heartburn
- Intestinal parasites
8. How much money do Americans spend on dietary supplements each year?
- $10 million
- $1 billion
- $14 billion
9. Which cereal has more bran?
- Frosted corn flakes
- Oatmeal
- Bran flakes
1. Correct answer is b): A normal meal takes between 12 and 24 hours to digest completely.
2. Correct answer is c): We typically produce 6 cups, or 1.5 quarts, of saliva each day.
3. Correct answer is c): Each of us should eat five servings of fruits, vegetables and whole grains each day.
4. Correct answer is b): Calories from fat should not exceed 30 percent of total calories consumed each day.
5. Correct answer is c): Americans spend nearly $1 billion (actually about $900 million) on laxatives annually.
6. Correct answer is d): Fiber acts as a natural laxatives, gives us a “full” feeling that keeps us from overeating and keeps food moving smoothly through the digestive tract.
7. Correct answers is a): Irritable bowel syndrome is the most common digestive condition about which people see their doctor each year.
8. Correct answers is c): Americans spend a breathtaking $14 billion on dietary supplements each year.
9. Correct answers is c): Bran flakes have more fiber than most other cereals.