chapter 7

Question 1

Which of the following vitamins are water soluble?

Answer 1

Vitamin C, Vitamin B6 and folic acid

Question 2

The most usable form of vitamin A in your body is _____.

Answer 2

retinol

Question 3

Vitamin D is _____

Answer 3

Vitamin D is a hormone and can be made in your body with the help of adequate exposure to the sun’s ultraviolet rays. You can also obtain it by drinking fortified milk.

Question 4

You are enjoying a salad bar lunch (good choice!). You want to top your greens with vitamin-E-rich foods. You could choose _____.

Answer 4

Go for all of them. Olive oil, nuts, and avocados are all excellent sources of vitamin E.

Question 5

A deficiency of thiamin can cause _____.

Answer 5

A chronic deficiency of thiamin can cause beriberi. A vitamin D deficiency can cause rickets in children and osteomalacia in adults. Scurvy is the result of a vitamin C deficiency.

Question 6

Which of the following are considered antioxidants?

Answer 6

Both vitamin E and beta-carotene function as antioxidants in your body. Although vitamin K isn’t an antioxidant, it helps your blood clot.

Question 7

Adam Craig is 55 years old. Which of the following might his body have difficulty absorbing?

Answer 7

the vitamin B12 in a piece of steak
Correct! Approximately 10 to 30 percent of adults over the age of 50 have reduced secretions of acidic stomach juices, which affects the absorption of the vitamin B12 that is found naturally in food. The other B vitamins should be absorbed regardless of Adam’s age.

Question 8

You are enjoying a lovely breakfast of raisin bran cereal doused in skim milk and a glass of orange juice. The vitamin C in the orange juice will enhance the absorption of _____.

Answer 8

the iron in the cereal
Incorrect. Vitamin C will help your body absorb the iron in grain products and cereals. Vitamin C does not affect the absorption of calcium or vitamin D. However, the vitamin D in the milk will help you absorb the mineral calcium.

Question 9

Folic acid can help reduce the risk of _____

Answer 9

neural tube defects

Question 10

The USP seal on the vitamin label means that the dietary supplement has been tested and shown to _____

Answer 10

Manufacturers of dietary supplements can voluntarily have their products tested for all of the above. The U.S. Pharmacopoeia (USP) seal also signifies that the supplement has been tested for its ability to dissolve in a reasonable amount of time in your body so that it can be properly absorbed.