Nutrition Ch. 9

Which is NOT considered a good dietary source of vitamin E?

Dark orange and yellow vegetables

Beta-carotene is LEAST plentiful in which food?

Kiwis

Excessive intake of vitamin A from supplements could cause all of the following EXCEPT:

acne

Long term use of antibiotics may result in vitamin K deficiency because:

antibiotics may change the bacterial flora in the gut, decreasing vitamin K production

When vitamin A is deficient, all of the following occur EXCEPT:

epithelial cells produce too much mucus.

Vitamin A toxicity occurs most frequently when large amounts of _________ is (are) ingested.

preformed vitamin A supplements

Vitamin E deficiency in the U.S. is most likely to be a problem in

premature infants

Which vitamin is referred to as the "sunshine vitamin"?

D

Which statement about frozen foods is INCORRECT?

Fresh produce in grocery stores always has higher nutrient content than frozen produce.

Which statement about vitamin D toxicity is FALSE?

It is likely to be caused by too much sunlight.

The best way to increase antioxidant intake is to:

eat more fruits, vegetables, and whole grains

Vitamin A is stable EXCEPT when exposed to:

light and oxygen.

Vitamin A is essential for ____________.

A. reproduction B. growth C. immune function CorrectD. all of these

Which statement about canned vegetables is FALSE?

Current dietary recommendations are to rarely, if ever, consume canned vegetables.

Reduced consumption of fruits and vegetables, tends to decrease intake of all of the following fat-soluble vitamins EXCEPT vitamin _____.

D

Which statement about fat soluble vitamins is FALSE?

Fat soluble vitamins are only found in plant-based foods.

When vitamin A is deficient, there is a delay in the regeneration of the visual pigment. Which statement is INCORRECT?

This condition is irreversible.

Which fat soluble vitamin can be synthesized by intestinal bacteria?

Vitamin K

Vitamin K is required to produce prothrombin, which is needed for:

blood clotting.

A condition in which carotenoids accumulate in adipose tissue causing skin discoloration is:

called hypercarotenemia.

The action of sunlight on 7-dehydrocholesterol forms:

cholecalciferol.

When consumption of __________is insufficient, vitamin A absorption is decreased.

fat

As the intake of polyunsaturated fats increases, the need for vitamin E:

increases.

Vitamin D acts primarily in the:

intestine, kidney and bone.

A vitamin D-deficiency disease in adults which is characterized by weak or soft bones is called:

osteomalacia.

The primary function of vitamin D in the body is to:

regulate calcium and phosphorus levels

The actions of vitamin D do NOT include:

regulating thyroid hormone synthesis.

A vitamin D-deficiency syndrome characterized by bone deformities in children is called:

rickets.

African Americans are at increased risk of vitamin D deficiency for all of the following reasons EXCEPT:

they spend less time in the sun than people of other ethnic backgrounds.

The primary function of vitamin E is:

to act as an antioxidant.