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Nutrition test 3
Nutrition test 3
123
Health Care
Undergraduate 1
03/14/2011

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Term
What are the major roles of water in the body?
Definition
-makes up about 60% of your weight
-carries nutrients throughout the body
-participates in chemical reactions
-regulates temp.
-is a solvent (used to dissolve minerals, glucose, amino acids etc.)
-is a lubricant and acts as a cushion for joints, digestive tract.
-Protects sensitive tissue like spinal cord, eyes and fetus
-acts as coolant (sweat)
Term
What factors influence the amount of water needed by the body
Definition
-Food-(alcohol, caffeine [diuretic], fiber, protein salt sugar medications)
-air temp and humidity.
-altitude
-activity level
-diseases (diabetes, kidney disease)
-pregnancy/breast feeding
-surgery, blood loss, burns
-age (very young/old age)
-sweating
Term
How much water do men need in a day? Women?
Definition
Men-13 cups
Women-9 cups
Term
Fruits and veggies consist of up to ___% of water? Meat and cheeses consist of ___% of water
Definition
95, 50
Term
What is hard water?
Definition
Hard water has high concentrations of calcium and magnesium- levels a ring on the tub. Makes poor lather, and turns clothes grey.
Term
True or False- Hard water can lead to aggravation of high blood pressure
Definition
False. It leads to less aggravation of high blood pressure.
Term
What is soft water?
Definition
Has a high concentration of sodium. Makes more bubbles with less soap. aggravates hypertension. Also dissolves contaminant metals from pipes (lead)
Term
What are electrolytes
Definition
When salts dissolve in water they separate into ions called electrolytes.
Term
What mineral do we typically get too much of?
Definition
Sodium
Term
What minerals are we typically lacking in?
Definition
Calcium and Magnesium (children and teens) Iron (women/childbearing years)
Term
What is the function of calcium?
Definition
Used in bone and tooth structure, nerve transmission, muscle contraction, blood pressure/clotting, and regulating transport of ions across cell membranes
Term
What is the function of Magnesium?
Definition
-It is a building protein, and uses energy
-assists in the operation of 300+ enzymes
-directly affects metabolism of potassium, calcium and vitamin d
-critical to normal heart function
- bone mineralization
-immune function
-nerve function
-muscular function
Term
What is the function of Sodium?
Definition
-Attracts water (controls the fluid levels outside of cells
-maintains acid base balance
-needed in muscle contraction and nerve transmission
Term
What is the function of Potassium?
Definition
-maintains fluid and electrolyte balance
-maintains cell integrity
-maintains heart beat
-is needed in nerve impulse transmission
Term
What is the function of Iodine?
Definition
-is part of the hormone thyroxine (made in the thyroid gland
-this regulates the body metabolic rate, temperature, reproduction, growth, and heart functioning
Term
What is the function of iron?
Definition
-used in cells to carry oxygen to the body (hemoglobin) and to the muscles (myoglobin)
-used as part of enzymes, energy metabolism, needed to make new cells, amino acids, hormones, and neurotransmitters.
Term
What is the function of zinc?
Definition
-makes part of the cells genetic material
-protects cell structures against oxidation
-makes heme in hemoglobin
-assists pancreas with its digestive and insulin functions
-helps metabolize carbohydrates, protein, fat
liberates vitamin A from storage in the liver
-here are some non major functions
-affects behavior, learning and mood
-assists in the proper immune functioning
-essential to wound healing, sperm production, taste perception, normal metabolic rate, nerve and brain functioning, bone growth, normal development in children
Term
What is the function of Selenium?
Definition
-enzymes that contain selenium are essential to proper functioning of iodine containing thyroid hormones that regulate metabolism
-helps prevent free radical formation and protects against oxidation
Term
What is the function of Fluoride?
Definition
-strengthens tooth enamel, especially during tooth formation
-reduces acids that bacteria produce (suppresses their metabolism)
-promotes remineralization
Term
What are the major food sources of calcium?
Definition
Milk, cheese, yogurt, ice cream, bok choy, broccolie, brussel sprouts, cauliflower, chinese cabbage kale, kohlrabi mustard greens, breads, cakes/cookies, crackers.
Term
How much milk do you need in a day
Definition
2 cups for young children, 3 cups normally
Term
What are good sources of Magnesium?
Definition
Spinach, bran cereal, oysters, yogurt, soymilk, black beans, water (depending on where you live)
Term
T or F- Magnesium is easily peeled and washed away during processing
Definition
True
Term
What are good sources of sodium
Definition
Salt, processed foods, soy sauce, seasoning, fast food and condiments
Term
What are some good sources of potassium?
Definition
most fruits and veggies, bananas, spinach, cantaloupe, almonds, lima beans, avocado, honeydew melon, backed potato, salmon, orange juice (is inside all living cells)
Term
What is a good source of iodine?
Definition
Seafood, iodized salt, bakery products and milk
Term
What happens if you dont have a good source of iodine in your diet
Definition
Your thyroid enlarges trying to absorb as many particles of iodine as possible
Term
What is cretinism
Definition
It is caused by a lack of iodine in your diet as an infant, causes extreme physical and mental retardation
Term
What are good sources of Iron?
Definition
MPF factor (meat fish poultry)
Term
What does iron in your diet do?
Definition
Enhances absorption of non heme iron present in the same foods or in other foods eaten at the same time
Term
What types of things hinder iron absorption
Definition
tea, coffee, calcium and phosporus, phytates tanning beds and fiber.
Term
What are good sources of Zinc?
Definition
meats, shellfish, poultry, milk and milk products, some legumes and whole grains oysters, shrimp, enriched cereal, beef steak, yogurt, pork chop
Term
What are the symptoms of iodine deficiency
Definition
During pregnancy= cretinism (retardation); goiter
Term
What are the symptoms of iron deficiency
Definition
Fatigue, and chewing on ice (pica), Anemia, weakness, pale skin, mucous membranes ?, pale concave nails, headaches, inability to concentrate, impaired cognitive function, lowered cold tolerance.
Term
What are the symptoms of zinc deficiency?
Definition
Poor growth/maturation, loss of taste and poor wound healing
Term
What are the consequence of high calcium intake?
Definition
Constipation, interference with absorption of other minerals, kidney stones
Term
What are the consequences of high iron intake
Definition
Fatigue, Abdominal pain, infections, liver injury, oint pain, skin pigmentation, growth retardation in children, bloody stools, shock.
-It increases oxidative stress on tissues and is hard to excrete. Also increases susceptibility to infections.
Term
What are the consequences of high intakes of sodium
Definition
Raised blood pressure and aggravated hypertension
Term
True or False- Fruits and veggies are less nutrient dense because soil becomes depleted
Definition
False.
Term
Vitamin content in fruits and veggies is determined by what?
Definition
the plants genetics
Term
What two minerals can vary in food due to soil content
Definition
Iodine and selenium
Term
What happens in other minerals that are needed for plant growth are low in the soil
Definition
Decreased production, not decreased nutrients
Term
Who are most likely to have calcium deficiencies
Definition
Youth, elderly, lactose-intolerant.
Term
Who is most likely to have magnesium deficiencies
Definition
children and teens
Term
Who is most likely to have iron deficiencies?
Definition
Women, especially in childbearing years
Term
What mineral is likely to be found in excess?
Definition
Sodium
Term
Why does osteoporosis increase with aging?
Definition
-Vit. D production decreases
-Calcium absorption decreases
-other hormonal changes-lack of estrogen
Term
What are the effects of osteoporosis
Definition
Hollow/porous bones, decreases in elderly height, rheumatoid arthritis
Term
What are likely to increase your risks for osteoporosis?
Definition
Age, alcoholism, steroid use,
Term
What can you do to avoid osteoporosis?
Definition
maximize Calcium deposits in "bank" as youth, for those who are elderly, medication can help restore bones, and weight bearing exercise helps. Also adequate Ca and Vit. D
Term
The trabecular bone is typified by what?
Definition
lacy interior, more Ca turnover, withdrawals start earlier.
Term
The cortical bone is typified by what?
Definition
sturdy exterior, withdrawals start later.
Term
What type of problems are associated with extreme body fatness?
Definition
Hernias, arthritis, flat feet, gallbladder disease, gout, high blood lipids, kidney stones, liver malfunction, respiratory problems, sleep disturbances, sleep apnea, cancers, varicose veins, diabetes.
Term
What are the risks associated with central obesity?
Definition
-Risk of death from all causes is higher
-diabetes
-heart disease
-hypertension
-gallbladder stones
-stroke
-some cancers
Term
What is metabolic fitness?
Definition
Its your normal levels of blood pressure, lipids, glucose and insulin levels.
Term
True or False 1/3 of metabolically healthy people were considered obese, and half were considered overweight
Definition
True
Term
Whats a problem with BMI
Definition
It is inadequate for assessing chronic disease risk
Term
What is more important than your BMI
Definition
location of fatness (central obesity)
Term
T or F Overweight elderly are less prone to sickness than underweight elderly?
Definition
True
Term
What can an unhealthy lifestyle lead too
Definition
hypertension, insulin resistance dyslipidemia, inflammation
Term
What are some problems associated with being overweight?
Definition
sleep disturbances, gallbladder disease, complication in pregnancy
Term
What factors affect BMR
Definition
-Gender
-Age
-Physical Activity
-Body size and weight
-Growth
Term
What is energy expenditure made up of
Definition
Basal metabolism, the body's voluntary activities and the thermic effect of food.
Term
What are some benefits of the BMI
Definition
-its easy to use, (Height vs. Weight)
- you can do it yourself.
-used as a proxy for tother health indicators for hte population
Term
What are some negative sides of BMI
Definition
-it is not very good proxy for individuals
-it cant distinguish between muscle and fat
-obesity is diagnosed using 3 factors (pg. 327
Term
What are some other measures of body fatness
Definition
-Dexa scanner
-Air displacement
-anthropometry (skinfold test)
These are limited in reliability
-density (underwater weighing)
-conductivity (bioelectrical impedance)
-radiographic techniques
Term
What are the generic BMI qualifications (ie. underweight, healthy weight, overweight, and obese)
Definition
Underweight-<18.5
Healthy Weight-18.5-24.9
Overweight- 25-29.9
Obese->30
Term
What are the generic waist measurements to assess chronic disease risks?
Definition
Male->40 (apple shaped)
Female> 35 (pear shaped)
Term
A healthy man's body fat is?
A healthy womans body fat is?
Definition
12-20%
20-30%
Term
An obese mans (<40 waist) fat is
An obese womans (<40 waist) fat is
Definition
22%
32%
Term
What is the body fat of a obese man (>40 Waist)
Obeses woman(>40 waist)
Definition
25%
35%
Term
What is a psychological desire to eat called
Definition
your appetite.
Term
What is the definition of Ghrelin
Definition
hormone that stimulates eating
Term
What is hunger
Definition
the physiological need to eat
Term
What is leptin
Definition
a hormone that supresses eating
Term
Satiation is
Definition
the perception of fullness when eating
Term
Satiety is
Definition
a perception of fullness that lingers.
Term
What are the external influences on eating
Definition
Sensory cues
Food availability and pricing
physical inactivity
portions
social factors
Term
When you over eat what happens to excess carbohydrates
Definition
Stored in liver or in muscles in the form of glycogen
Term
When you over eat what happens with excess fats
Definition
it is stored in adipose tissue
Term
When you over eat what happens with excess amino acids
Definition
They are converted to nitrogen and are lost in urine
Term
What happens when you are fasting?
Definition
Liver and muscle glycogen are broken down into glucose and are used. Body fats are liberated and are turned into amino acids and used
Term
What happens when you have long term food deprivation to body protein
Definition
Body protein is broken down to amino acids and then converted to glucose (gluconeogenesis)
Term
What happens when you have long term food deprivation to your body fat
Definition
Body fat is made into fatty acids- You need carbohydrates for this process or you get ketone bodies, body can use ketones , but they are acidic and change ph body fluids
Term
When you have rapid weight loss what happens?
Definition
-first couple of pounds is water and doesnt have any calorie value
- the more you lose the harder it is to loose more. The body adapts to conditions
Term
When you have moderate/slow weight loss what happens
Definition
It is more likely to be fat than water weight,
-weight plateaus after awhile due to bodies survival mechanisms
Term
What does it take to lose a pound
Definition
Adipose tissue =3500 kcals/lbs
Fat storage (adipose + supporting lean tissues) 3300 kcals/lbs
must have energy deficit of 2700-3500 kcal to lose a point per week
Term
Diets high in protein, and low car work _______
Definition
temporarily
Term
Successful weight loss maintenance is
Definition
-.5 to 1 lbs/wk
-regular foods, ABCMV (what's in the food guide)
-includes favorites (in appropriate quantities)
-promotes healthy relationship with food
-does not lead to disordered eating
Term
What are things you can do to achieve a healthy weight instead of focusing on a particular weight loss goal
Definition
-focus on fitness not fatness
-being fit is going to supply benefits regardless of the weight loss
-health at every size
Term
What are some consequences of eating disorders
Definition
-physical (starvation, experiment, osteoporosis)
-distorted body image
-cant think clearly
-feel unworthy
-highest mortality rate
-treatment can help, especially the earlier it is detected
Term
What are the characteristics of anorexia nervosa
Definition
-obsessed with food but low intake
-distorted body image
-fear of gaining weight
-desire for perfection and control
-constantly thinking of food and eating
Term
What are the consequences of anorexia nervosa
Definition
-delayed puberty, stunted growth
-lack of menstruation
-dehydration
-osteoporosis
-irregular heart/heart failure
-premature death
Term
What are the characteristics of Bulimia Nervosa
Definition
-Binge purge cycle
-often normal weight
-fear of uncontrolled eating
-recognition of abnormal behavior
-guilt shame secrecy
-depression/lack of control
Term
What are the consequences of bulimia nervosa
Definition
-binge purge as coping mechanism
-irregular menstrual cycles
Term
What are the benefits and guidelines for regular physical activity
Definition
-reduces risk of chronic disease (30 min of moderate intensity to benefit)
-helps manage body weight (60 min of moderate intensity for benefit)
-sustain weight loss (60-90 min of moderate activity)
Term
What activity are considered moderate
Definition
-briskly walking 3.5 mi/hr
-hiking
-gardening/yard work
-dancing
-golf
-bicycling >10 mi/hr
Term
What activities are considered intense
Definition
-running 5+ mi/hr
-bicycling 10+mi/hr
-swimming
-aerobics
Term
What are the standards for a fitness program
Definition
-stretching/flexibility
-aerobic conditioning
-strength training
Term
What does ABCMV stand for
Definition
Adequacy, balance, calorie control, moderation, and variety
Term
What is the female athlete triad
Definition
Disordered Eating
Amenorrhea- diminished hormones (loss of menstrual cycle)
Osteoporosis- diminished bone density

(it is when body fat is less than 17%
Term
What are the consequences of eating disorders
Definition
-physical (starvation, osteoporosis)
-distorted body image
-cant think clearly
-feel unworthy
-highest mortality rate for mental illness
Term
What are the characteristics of Anorexia nervosa
Definition
-obsessed with food but low intake
-distorted body image
-fear of gaining weight
- desire for perfection and control
- constantly thinking of food and eating
Term
What are the consequences of anorexia
Definition
-delayed puberty, stunted growth
- lack of menstruation
-dehydration
-osteoporosis
-irregular heart/heart failure
-premature death
Term
What are the characteristics of Bulimia Nervosa
Definition
-binge purge cycle
-often normal weight
-fear of uncontrolled eating
-recognition of abnormal behavior
-guilt, shame, secrecy
-depression, lack of control
Term
Explain the benefits and guidelines of regular physical activity
Definition
-30 minutes of moderate intensity a day

-60 minutes of moderate intensity a day
---helps to manage body weight

-60-90 minutes
---sustains weight loss
Term
What activities would be considered moderate
Definition
briskly walking 3.5 mi/hr
hiking
gardening/yard work
dancing
golf
bicycling <10 mi/hr
Term
What kind of activities are considered intense
Definition
running 5+ mi/hr
bicycling 10+ mi/hr
swimming
aerobics
Term
the more intense the exercise the _____ glucose that is used.
Definition
more
Term
The less intense the exercise the ____ fatty acids that are used.
Definition
more
Term
What happens when you hit the wall
Definition
When muscles have run out of glucose
Term
Is it important for athletes to have a high protein diet?
Definition
No, not good evidence of needing more protein. It is need for muscle building, but extra protein is not needed, only the normal amount
Term
You should get _____ % of protein
______ % of carbs
_______% of fats
Definition
10-35
40-65
20-35
Term
What are some food intake recommendations for athletes?
Definition
-High carb diet if doing endurance activities
-low in fat
-low carb drinks during event (6-7%)
- train your muscles to max glycogen stores
Term
pre game meals should be
Definition
easy to digest
high carb
breads pastas potatoes
light (300-800 cal)
3-4 hours before event
lots of fluids
Term
What the deal with supplements
Definition
they arent cracked up to what they claim to be
only useful to correct deficiency- well balanced diet does not need them
Term
You women are typically ____ deficient
Definition
iron
Term
_____ is needed to combat oxidative damage created during exercise
Definition
Vitamin E
Term
HOw much fluid should you have before an activity
Definition
2-3 hours 2-3 cups
Term
before your activity how much water should you have
Definition
1-2 cups
Term
During your activity how much water should you have
Definition
every 15 minutes you should have 1/2 to 1 cup
Term
What is better water or sports drink?
Definition
Cool water cools faster, sports drink is good for high endurance activities
Term
hyponatremia is what
Definition
when there is not enough sodium in the body, and you drink to much water. This fails to replenish electrolytes,
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