Nutrition

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60 mg of tryptophan will produce _ mg of niacin

1

How many milligrams of tryptophan are required to yield 200 mg of niacin?

12,000

The average meat-eating person has enough vitamin B-12 stored in the liver to last for _

2 to 3 years

What is the ai for biotin

30 ug/day

Glossitis results in

A painful, inflamed tongue

Which B-vitamin is synthesized from tryptophan

Niacin

Which B-vitamin, in high does, was historically prescribed by physicians to increase HDL cholesterol and lower triglyceride levels?

Niacin

Why are corn- based diets associated with pellagra?

Niacin, corn

Currently, niacin-containing medications are _ recommended for most individuals with cardiovascular disease

No longer

Which is true about the upper level for thiamin?

There is no upper body level established for this nutrient

Pork products are excellent sources of _____.

Thiamin

The B vitamin required as a coenzyme to release energy from carbohydrates and some amino acids is

Thiamin

niacin serves as a _____ in energy metabolism

coenzyme

Biotin is found in food as

biocytin free biotin

What happens to excess niacin?

excreted in urine

Which is true about the transport and storage of thiamin

little thiamin is stored in the body, transported by red blood cells

Common food sources for pantothenic acid include

milk and meat

To account for preformed niacin in foods and niacin synthesized from tryptophan, niacin is expressed as _

niacin equivalents

Vitamin B-6 participates in ______ metabolic reactions.

numerous

A pantothenic acid deficiency is

rare

The coenzyme form of pantothenic acid participates in

release of energy from carbohydrates, fats, and proteins. fatty acid synthesis.

Water-soluble vitamins are essential organic substances needed in _ amounts.

small

Where does the breakdown of biotin occur

small intestine

Where is thiamin absorbed?

small intestine

Which vitamin helps maintain gene stability by binding to the proteins that help DNA fold in the cell nucleus?

Biotin

Thiamin is a key component required to metabolize the macronutrient

Carbohydrate

Good sources of biotin include?

Cauliflower,liver,peanuts,egg yolks

Which of the following are good food sources of vitamin B-6

Fish meat poultry

The water-soluble vitamin deficiency that may eventually lead to megaloblastic anemia is due to a lack of which vitamin?

Folate

There is no UL set for riboflavin because it

Has limited absorption and rapid excretion, with no known adverse effects from consuming large quantities

Which is true about riboflavin?

Hydrochloride, in the blood, 60 to 65%

Functions of the riboflavin include

-assisting antioxidant reactions -release of energy from fatty acids

The average daily intake for thiamin in men and women is _ the recommended RDA.

Above

Generally, _ niacin that is consumed is absorbed

Almost all

water soluble vitamins

Are needed for the normal function of body tissues, are needed for the growth of body tissues, and help maintain body tissues

There _ appear to be adverse effects from consuming large amounts of riboflavin

Does not

The prevalence of thiamin deficiency in older adults is

Less common than thought

Riboflavin's conversion to its coenzyme form occurs mainly in the

Liver, small intestine, heart

A deficiency in which of the following vitamins may cause glossitis

Riboflavin

Milk is an excellent source of

Riboflavin

Which vitamin is a component of flavin mono nucleotide and flavin adenine dinucleotide

Riboflavin

The food sources of riboflavin include

Spinach, liver, mushrooms

Which organ produced the intrinsic factor that e chances vitamin B-12 absorption?

Stomach

Select the populations that are at risk of developing a thiamin deficiency

Those with gastrointestinal disease, heart failure patients, those who are obese

Which of the following are characteristics of panthoethnic acid

Transported, storage, part of coenzyme

Which of the following DRIs has not been set for pantothenic acid?

Upper level


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