Exam 2 Flashcards
Adverse reaction
undesirable response to food
food intolerance
adverse reaction to food or chemical substance in food
food sensitivity
mild reaction, light iching or redness of skin
food allergy
antibody mediated (IgE) reaction, can show a cause and effect reaction
Most common food allergies
Peanuts Tree nuts eggs milk soybeans wheat shellfish fin fish
1 food allergy
peanuts
celiac disease is classified as
a immune response
Prevalence of food allergies
3-4% adults
6% children
T/F: food allergies diminish with age
T
What sex has more food allergies
female
Food allergies are reported by this percent of american households
25%
This is important in determining if you have allergies
and accurate medical diagnosis
NOT a self diagnosis
T/F: you can easily tell if you have a food allergy by the symptoms
F
Risk factors in developing food allergies
genetics
environmental
These are the two types of environmental factors in food allergies
prenatal
postnatal
What causes an allergic rxn to food
a large molecule protein or a fraction of a protein is absorbed into the blood stream and produces an immunologic response
Allergies involve the production of these
antibodies (IgE)
immunoglobulins
inflammatory mediators
Three symptom types of food allergies
classic
GI tract
General
Classic symptoms of food allergies
itching, reddening of skin, asthma, swelling of different part of body, choking, runny nose, eczema, hoarseness, wheezing
GI tract symptoms of food allergies
nausea, vomiting, diarrhea, gas or bloating, constipation, indigestion, abdominal pain
General symptoms of food allergies
headaches, skin reactions, chest tightness, hypotension, shock
3 routes of exposure to allergens
ingestion
inhalation
skin contact
THis is a generalized all system reaction
anaphylactic shock
Anaphylactic shock causes this many deaths per year
150-200
Symptoms of anaphylactic shock
tingling or swelling of throat, tongue or skin
difficulty breathing
drop in blood pressure
This reduces symptoms of anaphylactic shock
epinephrine
diagnosis of food allergies
complete history physical exam elimination diet followed by food challenge skin tests RAST-radioallergosorbent test
prevention of reaction: delay solid foods until this age
6 months
prevention of reaction: delay dairy and wheat this long
12 months
prevention of reaction: delaty eggs this long
24 months
prevention of reaction: delay nuts and fish this long
36 months
prevention of reaction: What is the roll of omega-3 fatty acids
may influence immune response
reduce inflammatory response
prevention of reaction: These people should avoid offending foods
women who are pregnant or breatfeeding
prevention of reaction: Hydrolyzed infant formula is used for this reason
hydrolyzed casein and whey may be better tolerated
Treatment of food allergies
avoid eating offending food maintain nutrient quality of diet label reading is critical watch for cross-contamination reintroduce small amounts of offending food every 6-12 months in children
T/F: food allergies are a life long condition
F
Symptoms of a food intolerance
stomach ache wheezing hives diarrhea vomiting nausea headache
T/F: food intolerance is characterized by an immun response
F
Common causes of food intolerances
constituents in certain foods synthetic compounds food contaminants (bacteria) Toxic contaminants (toxins produced by bacteria) deficiencies in digestive enzymes chemical triggers
examples of chemical triggers for food intolerances
sulfides
MSG
tyramine
Groups with vegetarian traditions often have these health benefits
lower disease rate closer to desirable weight lower cholesterol and hypertension lower cancer mortality lower rates of heart disease
Those that follow a vegetarian diet tend to do this
live a more healthful lifestyle
Lower rates of heart disease in vegetarians could be due to this
lower blood lipid levels
Proteins are made of these
amino acids
Essential amino acids
needed in the diet
body cannot make them
non-essential amino acids
non needed in the diet
conditionally essential amino acids
cannot be formed in times of high stress
What are the essential amino acids
Phenylalanine valine threonine tryptophan isoleucine methionine histidine leucine lysine
Limiting amino acids that are in short supply in vegetarian diet
LiMiTT Lysine Methionine Threnine Tryptophan
Complete protein sources
meat fish poultry cheese eggs milk soy isolate
incomplete protein sources
plants
This is the percent of protein digestibility in plants
70-80%
reference protein is
egg
biological value (BV)
protein quality
measures proteins effeciency in meeting the bodies needs
starts at 100 and goes down
PDCAAS
Protein digestibility corrected amino acid score
Protein digestibility corrected amino acid score is this
corrects amino acid scores for the digestibility of protein
used on nutrition lables of protein %DV
Types of plant based diets
fruitarian macrobiotic semi-vegetarian lactovegetarian lacto-ovo-vegetarian ovo-vegetarian vegan pollo-vegetarian
fruitarian
extreamly restrictive
some vegetables, nuts, honey, olive oil
macrobiotic
extremely restrictive
whole grains, vegetables, some beans
semi-vegetarian
not strict
some meat, and animal derived products
lactovegetarian
includes milk and milk products
lacks iron
lacto-ovo-vegetarian
includes milk, milk products, and eggs
may lack iron
ovo-vegetarian
includes eggs
may lack iron, calcium, vitamin D and riboflavin
Vegan
Only vegetables
may lack Fe, Ca, Vit D, B2, B12
pollo-vegetarian
includes chicken
What do vegetarians need to plan their diet for
enough calories
enough Vit. and minerals
essential proteins
This is the best sources of iron
meat
protein requirements
12% of total caloric intake
0.8g/kg of body weight per day
good protein sources include
soy legumes (dried seeds in pod) nuts and seeds whole grains milk or dairy products
Dietary protein should
supply nine essential amino acids when comine
supply enough other a.a. to make nitrogen available for synthesis of non-essential a.a.
What is protein complementation
two or more proteins whos a.a. complement eachother so that the essential amino acid missing (or limiting) from one is supplied by the other
meat analogs
special processed plant proteins made to imitate meat
Meat analogs are made from
soy
barley flour
bulgur wheat
wheat gluten
This type of iron is poorly absorbed
nonheme iron
RDA for nonheme iron is this much higher for vegetarians
1.8X
This helps increase iron absorption
vitamin c
sources of iron in a vegetarian diet
legumes tofu greens dried fruit iron fortified cereal
Other problem nutrients in a vegetarian diet
zinc calcium B12 Vitamin D Omega-3 fatty acids
Most common mistakes of a vegetarian diet
over reliance on fruits and vegetables at the expense of grains/legumes
limited diet
high in fat due to over reliance on cheese/eggs
not allowing any fortified foods
These nutrients are important to have for an adolescent who is eating a vegetarian diet
calcium and vitamin D
Overall dietary principles (vegetarian): include foods rich in this
calcium
Overall dietary principles (vegetarian): include a good source of these two vitamins or take a supplement
B12
vitamin D
Overall dietary principles (vegetarian): energy intake
consume enough energy to maintain an ideal weight
Overall dietary principles (vegetarian): include a good sources of this to improve non-heme iron absorption
vitamin c
must be eaten at same time
Overall dietary principles (vegetarian): include moderate amounts of these daily
beans
seeds/nuts
Overall dietary principles (vegetarian): diet should be based on these
whole grains
vegetables
fruits
Overall dietary principles (vegetarian): choose oils that contain this
linolenic fatty acids
Why is this a problem nutrient for a vegetarian: zinc
not absorbed well from plants
Why is this a problem nutrient for a vegetarian: calcium
not enough foods containing calcium are included in the diet
Why is this a problem nutrient for a vegetarian: B12
found only in animal products
must be eaten in fortified foods and supplements
Why is this a problem nutrient for a vegetarian: Vitamin D
It is normaly obtained from fortified dairy products, fatty fish and sunshine
What are a good sources of alpha-linolenic fatty acids (ALA)
flaxseed (must grind)
walnuts
soybeans
Examples of omega-3 fatty acids
alpha-linolenic fatty acids (ALA) eicosapentaenoic acid (EPA) docosahexaenoic acid (DHA)
What is a challenge for children consuming a vegetarian or vegan diet
not enough nutrients to support the rapid growth ocuring
What are three componets of a good cooking demonstration
introduction
body
summary
What are the four parts of a well stated objective
must be specific, measurable, realistic, and support key points
SMART stands for
specific measurable achievable relevant time related
Example of SMART objective given in notes
Following the presentation, 75% of the audience will be able to list two ways to increase fiber in baking with no errors
What does it mean to use a measurable performance verb
being measurable means being able to be specific with the action being stated
Two examples of measurable performance verbs
name construct explain solve select prepare
What is blood pressure
measure of the force of the blood against the walls of the arteries
What is hypertension
persistently high blood pressure
You need this to diagnose hypertension
two or more elevated measures
systolic
heart contracting
top number
diastolic
heart relaxing
bottom number
This many U.S. adults has hypertension and it affects this many (#) americans
1 in 3
>65 million
hypertension is know as this type of killer
silent killer
DASH stands for
Dietary Approach to Stop Hypertension
Hypertension leads to these
heart attack, stroke, kidney disease and congestive heart failure
Optimal systolic and diastolic
<80 mmHg
Pre-hypertensive systolic and diastolic
120-139
80-89 mmHg
Stage three systolic and diastolic
> = 180
>=110 mmHg
FAST tips for spoting a stroke
Face drooping
Arm weakness
Speach difficulty
Time to call 911
Primary (essential) hypertension
cause cannot be determine
greatly influenced by diet/lifestyle
secondary hypertension
direct cause can be identified
Risk factors for hyper tension
older age african american ethnicity family history (first degree blood) high weight low activity tobacco use high sodium low potassium alcohol intake stress
these are good sources of potassium
fruits and veges
Normal sodium intake per day
3000 mg
What evidence exists for the effectivness of the DASH diet and reducing sodium
Two Studies proformed by NHLBI that found fruits and veges added to diet reduced blood pressure, and lowering sodium and eating the DASH diet had a large decresing effect on blood pressure
Some of the DASH diet outcomes include 4
lower total cholesterol by 7%
lowered LDL cholesterol by 9%
lowered HDL by 7.5%
lowered homocystien
The DASH plan contributes this much potassium, magnesium and calcium to the diet
4700 mg K
500 mg Mg
1240 mg Ca
Magnesium does this in the body
diolates blood vessels
calcium does this in the body
muscle relaxation
Number of servings for a 2000 calorie dash diet: grains
7-8
Number of servings for a 2000 calorie dash diet: vegetables
4-5
Number of servings for a 2000 calorie dash diet: Fruits
4-5
Number of servings for a 2000 calorie dash diet: low fat dairy
2-3
Number of servings for a 2000 calorie dash diet: meats, poultry, fish
6 oz or less
Number of servings for a 2000 calorie dash diet: nuts, seeds, legumes
4-5 per week
Number of servings for a 2000 calorie dash diet: fats and oils
2-3
Number of servings for a 2000 calorie dash diet: sweets
5 or less per week
According to NHLBI how much sodium should we have in a day
1500 mg/day
What is the best way to reduce sodium
avoiding processed, and restaurant foods
According to NHLBI how much potassium should we have in a day
2700 mg
Over all recommendations for reducing hypertension 7
eat more fruits, veges, legumes and low fat dairy maintain a healthy weight aim for 1500 mg Na aim for 2700 mg K increase activity level only drink in moderation don't smoke
Tips for getting started eating the dash diet
gradual change
treat meat as one part of the whole meal
use fruits, and other healthy foods as snacks
try eating to vegetarian style meals per day
Tips for reducing sodium 6
use herbs and spices taste before salting add little or no salt at table read lables select low-sodium or salt free products use products containing alot of salt sparingly
What is national heart month
February
This is the leading cause of death in the us
CVD
Risk factors of CVD
inactivity obesity hypertension smoking high cholesterol diabetes age gender psychosocial issues triglycerides
Who came up with the list of risk factors for CVD
Framingham heart study
Five major symptoms of heart attack (mostly men)
pain or discomfort in the jaw, neck or back feeling weak, light-headed, or faint chest pain or discomfort pain or discomfort in arms or shoulder shortness of breat
Woman should focus on these symptoms of a hear attack
mostly tired/weak
feel very nauseous
when did the framingham heart study begin
1948
What is the objective the of framinghame heart study
identify the most common factors or characteristics associated with CVD
What are the low and high values for HDL
60
what is the desirable lvls for total cholesterol
<200
What is optimal and high for LDL lvls
<100
160-189
What is the normal and high range for triglyceride lvls
<150
200-499
These raise HDL
exercise
stop smoking
This lowers LDL
eat less saturated fat
These increase triglycerides
SoFAS, solid fats with added sugar
NCEP stands for
national cholesterol education program
ATP stands for
2001 adult treatment panel III for cholesterol management
TLC stands for
Therapeutic lifestyle changes approach
TLC is focused on
reducing saturated fat and cholesterol
weight reduction
increasing physical activity
Nutrient composition of TLC diet: saturate fat
<7% of total calories
Nutrient composition of TLC diet: polyunsaturated fat
up to 10% of total callories
Nutrient composition of TLC diet: monounsaturated fat
up to 20% of total calories
Nutrient composition of TLC diet: Total fat
25-35% total cal
Nutrient composition of TLC diet: carbohydrate
50-60% tot. cal.
Nutrient composition of TLC diet: fiber
20-30 grams/day
Nutrient composition of TLC diet: protein
about 15% tot. cal
Nutrient composition of TLC diet: cholesterol
<200mg/day
Soluble fiber does this in the blood
binds cholesterol
AHA stands for
American Heart Association
AHA recommendations
use as many calories as you take in
eat a variety of nutritious foods
eat less nutrient poor foods
don’t smoke
AHA said to have this amount of dietary cholesterol per day
<300 mg
What is the focus of fiber and fish on the heart
fiber can bind cholesterol and fish has omega-3 fatty acids
Sources of monounsaturated fats
olive oil
canola oil
avocado
nuts
monounsaturated fats do this to the two types of cholesterol
decrease LDL but not HDL
Trans fats occur naturally here
ruminants
Trans fats do this to the two types of cholesterol
decrease both HDL and LDL
Sources of saturated fat in the diet
red meat
dairy
cheese
processed foods
Where to find omega-6 fatty acids
vegetable oils (sunflower, safflower, corn, cottonseed) processed foods
these fatty acids are essential
linoleic (omega 6 fatty acid)
alpha-linolenic acid
These fatty acids are found in cold water fish and seafod
EPA
DHA
AI for n-3 fatty acids (from all types)
- 1g/day woman
1. 6g/day men
Why has the popularity of soy increased
baby boomers interested in health and longevity growth in asian population people chosing more plant-based foods belief soy is healthy more products out now
Nutrients found in soy
some provide a complete protein profile
less fat and saturated fat than animal products
whole soybean foods are high in fiber
good source of calcium, copper, magnesium
phytochemcials
This is true about a.a. in soybeans
more a.a. in green soy beans than other beans
phytochemicals
naturally occuring non-nutritive chemicals that are physiologically acitve
Why are iron and zinc less available in soy products
phytates that bind iron and zinc in plants
These form curds and whey in soy
calcium sulfate
this is an example of a phytochemical found in soy
isoflavones
Isoflavones mimic this
estrogen
What are sources of isoflavones
soy products with protein connected
Health benefits of soy
lower cholesterol
reduce risk of cancer
promote bone development
Health concerns of soy
Breast cancer
Soy protein products/ingredients
soy flour soy concentrate soy isolate soy grits soy oil
Soy flour contains this much protein if defatted, and this much if it still contains some oils
86%
50%
Soy concentrate has this much protein
65%
Soy isolate has this much protein, and is used for htis
95%
used to make textured soy products
HVP stands for
Hydrolyzed vegetable protein
TSP stands for
Textured soy protein
TVP stands for
Textured vegetable protein
HVP, TSP, and TVP are used for these two purposes
meat analog or substitute
meat extender
soy grits are
ground defatted flakes
added to ground meat and cereals
Soy oil is
a good source of essential fatty acids and vitamin E
Soy milk is made from
ground soybeans, water, calcium
Tofu or soybean curd characteristics
process similar to cheese making
different consistencies for different products
stored in water
rich in polyunsaturated fatty acids and B vitamins
edamame
whole green soybeans
soy nuts
roasted whole bean
fermented soy products
miso-paste
tempeh-snack or meat alternative
natto-condiment used as a spread or in soups
soy sauce-fermented soybeans
This amino acid is usually only in the blood for a short time
homocysteine
Homocysteine is produced when this happens
methionine is metabolized
high levels of homocysteine are thought to cause this
damage to the lines of arteries and speeds up formation of blood clots
These 3 are necessary to convert homocysteine to other amino acids
folic acid, B6 and B12