Nutrition Exam 3 Study Guide

riboflavin (B2)

1. characteristic: sensitive to UV rays in sunlight and artificial light
2. function: co-enzyme in the release of energy from nutrients in every cell of the body
3. deficiency: ariboflavinosis - swollen and cracked lips (cheilosis) and swollen tongue (glo

Thiamin (B1)

1. characteristic: causes beriberi. eating hulled (white) rice caused beriberi, and eating brown rice fixed it, because it provided a source of thiamin
2. function: serves as a coenzyme, a substance that activates an enzyme, in energy metabolism; it also

Niacin (B3)

1. Characteristic: occurs naturally in two forms: nicotinic acid and niacinamide
2. Function: Involved as a coenzyme for many enzymes, especially those involved in energy metabolism; it is critical for glycolysis and the TCA cycle
3. Deficiency: Pellagra

Pyridoxine (B6)

1. Characteristic: generic terms representing a group of related chemicals; 3 main members are: pyridoxine, pyridoxal, and pyridoxamine
2. Function: in the form of PLP, B6 functions as a coenzyme in the metabolism of amino acids and proteins
3. Deficiency

Folate

1. Characteristic: folate, like other B vitamins, consists of several similar compounds; it is the nutritional factor responsible for the control of pernicious anemia
2. Function: acts as a coenzyme in reactions involving the transfer of one-carbon units

Cobalamin (B12)

1. Characteristic: generic terms to refer to cobalt-containing compounds; aka cyanocobalamin
2. Function: coenzymes, plays a role in folate, fatty, and amino acid metabolism, and develops and maintains the myelin sheaths
3. Deficiency: usually secondary,

Vitamin A

1. Charactersitic: number one cause of preventable blindness
2. Function: maintains skin and mucous membranes throughout the body, helps eyes
3. Deficiency: xeropthalmia from keratomalacia and casues night blindness
4. Toxicity: hypervitaminosis A only oc

Vitamin D

1. characteristic: the body can manufacture its own vitamin D with enough exposure to sunlight/
2. Function: intestinal absorption of calcium and phosphorus
3. Deficiency: rickets and osteomalacia
4. Toxicitity: hypercalcemia and hypercaluria which can ha

Vitamin E

1. characteristic: used to be thought to be an aphrodisiac
2. function: acts as an antioxidant, protecting polyunsaturated fats and vitamin a in cell membranes from oxidative damage
3. deficiency: primary deficiency is rare; secondary deficiency can occur

Vitamin K

1. characteristic: called K for its blood coagulating properties
2. function: a cofactor in the synthesis of blood clotting factors, including prothrombin; protein formation depends on K as well
3. deficiency: inhibits blood coagulation
4. toxicity: food

Vitamin C

1. discovery of C was associated with the search of the cause for scurvy
2. function: acts as an antioxidant and coenzyme
3. deficiency:scurvy
4. toxicity:: doesn't really occur from food
5. Food: citrus fruits

calcium

1. most abundant mineral in our body
2. function: is found in our bones, serving structural and storage functions
3. deficiency: primarily effects bone health; osteoporosis
4. toxicity: not a concern from foods
5. Food: dairy products

magnesium

1. function: mostly found in bones, assisting structural and storage functions
2. deficiency: related to secondary causes usually; muscle weakness
3. toxicity: rare, but serious
4. food: unprocessed foods are best sources

sodium

1. function: major cation in extracellular fluid
2. deficiency: hyponatremia
3. toxicity: excess is difficult for the body to handle; can harm kidneys
4. food: table salt

potassium

1. function: the primary intracellular cation, maintains fluid levels inside the cells
2. deficiency :caused by dehydration
3. toxicity: occurs only from supplements, toxic to those with renal disease
4. food: unprocessed foods, bananas, bananas and orang

chloride

1. function:key anion of extracellular fluids
2. deficiency: rare.
3. toxicity: can occur due to dehydration
4. food: consumption of foods with sodium chloride

iron

1. function: responsible for distributing oxygen throughout our bodies; is in hemoglobin in RBCs
2. deficiency: iron deficiency anemia
3. toxicity:hemosiderosis is a health concern; can cause liver and heart damage and skin discoloration
4. food:heme iron

iodine

1. function: part of the hormone thyroxin produced from the thyroid gland, regulates growth and development
2. deficiency:goiter
3. toxicity: iodine induced goiter called thyrotoxicosis
4. food:seafood is a good source

fluoride

1. function: increases resistance to tooth decay and is part of tooth formation
2. deficiency: risk of dental caries
3. toxicity: fluorosis, rotting/brown spotting of tooth enamel
4. food: most consistent is fortified water in which fluoride has been adde

primary deficiency

a nutrient deficiency caused by inadequate dietary intake of a nutrient

secondary deficiency

a nutrient deficiency caused by something other than an inadequate intake such as a disease condition or drug interaction that reduces absorption, accelerates use, hastens excretion, or destroys the nutrient.

phytochemicals have

disease fighting properties

coenzymes in energy metabolism

thiamin, riboflavin, and niacin

deficiency of folate causes

spina bifida and anencephaly in newborns

women in their child bearing years need

400ug of folate daily

vitamin C acts as

antioxidant and coenzyme

vitamin A maintains

skin and mucous membranes throughout the body

primary deficiency of vitamin E is

rare

lack of vitamin A could cause

night blindness

riboflavinosis

the signs and symptoms of riboflavin deficiency are known collectively as:

niacin deficiency

pellagra: dermatitis, diarrhea, dementia, death

Thiamin deficiency

Beriberi

only reliable source of B-12

foods of animal origin

not listed as primary sources of water

coffee, tea, and soda

diruretics that increase water loss from kidneys as urine

coffee, tea, and alcohol

functions of water:

-water helps regulate body temperature
-water acts as a lubricant as joint fluid
-water is a major component of blood and lymph

what regulates electrolyte levels?

kidneys

carries ions that dissolve in water

electrolytes

to maintain fluid balance, cells

control the movement of electrolytes

major electrolytes in the body

sodium, potassium, chloride

magnesium

in bones, assists 100s of enzymes throughout the body and regulates nerve and muscle function

iron distributes

oxygen throughout the body

oxygen depends on iron in

hemoglobin

hemoglobin needs iron to

carry oxygen to all cells

sea salt is

NOT a good source of iodine

iodine deficiency reduces amount of

thyroxin produced by the thyroid gland (can cause goiter)

fluoride added to water

is a reliable source

fluoride is only added to water if

the bottle says it is

increased thirst, urination, and stomach aches are signs of increased blood sugar.

true

normal blood sugar is between:

70-110

are potatoes, breads, and rice all carbohydrates?

yes

Does insulin raise or lower blood glucose levels?

lower

pre-diabetes

high blood glucose levels that do not warrant a diabetic diagnosis

polyuria

excessive urination

polyphagia

excessive hunger

polydipsia

excessive thirst

type 1 diabetes comes on

suddenly

type 2 usually isn't diagnosed until

a complication occurs

Glycosalated Hemoglobin

Allows you to see a patients history for the last 3 months, gives an average of blood sugar level; test doctor does twice a year for people with diabetes, they must fast for test

with gestational diabetes, the BGLs usually

return to normal after birth

gestational diabetes go through

the same treatments as normal diabetes

if blood sugar is less than 70, it is low blood sugar aka

hypoglycemia

children are now getting type 2 diabetes because of

obesity and teen pregnancy

if a woman has high blood sugar, can she still breast feed her baby?

yes

rapid and short acting

5-15 min; have food ready first before taking meds

a person with diabetes should have a quick acting simple carb

with them throughout the day to raise blood sugar

the most important part of the medical team

patient

carb counting

gives flexibility in food choices. 15g each choice

exchange system

a diet-planning tool that organizes foods with respect to their nutrient content and calories. Foods on any single exchange list can be used interchangeably.; this is what carb counting is

types of insulin

rapid/short, intermediate, long acting

weight gain may lead to

uterin growth

CDC says for a full term baby, if the mom has normal pre-pregnancy weight, she should gain

25-35 pounds

once you are pregnant, the doctor gives

pre-natal vitamins that have a higher amount of folic acid

a low birth weight the baby weighs less than

5.5 pounds

the major goal of WIC is for

a healthy mom and baby, at least 5.5lbs or more

to avoid FAS, the mother should

drink no alcohol while pregnant

smoking while pregnant could cause

-sudden infant death
-the baby to weigh less

preeclampsia

pregnancy induced hypertension

hormones important in breast feeding

oxytocin and prolactin

cholostrum

provides maternal antibiotics and nutrients essential to life

mom needs support of

the baby's father and her mother to be successful in breast feeding

mother needs

64oz of water daily

do not give babies under 1

honey / could cause botulism

the first solid food introduced for baby

rice cereal

new food should be introduced to baby for

5-7 days, look for allergic reactions

baby will transition to eating some foods by the time it is

one

whole milk for babies aged

1-2

1% milk for

2 and older

do not give a baby a bottle

for bed

do not give baby water until

6 months

fast foods lack in

vitamin A and C

growth is done

women - late teens
men - early twenties

family meals are important for

nutrition

school lunch program

school wellness policy on obesity prevention

1g carb =

15g carbs in the body

water soluble vitamins are

easily absorbed into small intestines

vitamin B-12 deifiency is seen

in older people

iron deficiency occurs when

there is reduced supply of iron stores available in the liver