Nutrition Flashcards
Nutrition
Essential for normal growth and
development, tissue maintenance and
repair, cellular metabolism and organ
function
High vs Low Nutrient Dense Foods
( define / low vs high)
Nutrient Density – the measure of the nutrients a
food provides relative to the energy it provides. The more nutrients and the few calories the higher the nutrient density.
High-nutrient dense foods – fruits and
vegetables, eggs provide a large number of
nutrients in relationship to calories
- fish/ fowl/lean meat, dairy products, vegetables and fruit
Low-nutrient dense foods – alcohol or sugar
are high in calories but poor in nutrients
- birthday cake ( simple sugar/carbs/ doesn’t do body good)
Calorie intake =
» Calorie intake > energy demands
» Calorie intake < energy demands
Energy (weight does not change)
(weight gain)
(weight loss)
Macronutrients
important features, dietary sources and deficiency states . energy producing nutrients
Carbohydrates – (a-b)
Proteins – (a-d)
Lipids - (a-e)
a. Simple (burned off quicky/honey, table sugar) and
b. Complex (vegetables, grains)
* Fiber – Soluble (fruit) and Insoluble (seeds)
* 1 GM of CHO = 4 kcal (energy)
a.20 Amino Acids
b. Complete
c. Incomplete
d. Complementary Protein
1 GM of Protein = 4 kcal
a. Fatty Acids
b. Saturated (BADDD)
c. Unsaturated
d. Monounsaturated
e. Polyunsaturated
* Cholesterol – LDL, HDL
* 1 GM of Lipids = 9 kcal
1 gram of CHO equals
4 kilocalories (kcal)
Obtain CHO primarily from plant foods –
7 and list the milk sugar from animals
oats
barley
rye
corn,
rice,
fruits
vegetables,
lactose (milk sugars) only
source of animal CHO
Monosaccharide (2) GFG vs Disaccharide (3)*MSL
Monosaccharide :
Glucose(dextrose)- honey,
corn syrup
Fructose – fruit,
honey, some
vegetables
» Cannot be broken
down
Galastose
Galactose is produced by mammals in the form of milk. Lactose holds a lot of energy in its bonds and for breaking down the bonds apart, specific enzymes are developed by off springs of mammals.
Disaccharide
simple
» Sucrose – fruits,
vegetables, white &
brown sugar
» Lactose – milk sugar
» Maltose – not found
naturally to food,
additive (beer)
» Composed of 2
monosaccharides &
water.
Polysaccharides
THREE TYPES
Made up of many
carbohydrate (poly)
a. Starches –grains, legumes,
starchy vegetables, potatoes
b.Glycogen-stored form of
glucose in the liver and
muscles
c. Fiber – roughage–unable
to digest some D/T the lack
of enzymes to break them
down (2 forms - soluble vs
insoluble)
Fiber (insoluble vs soluble)
Soluble Fibers
» Dissolve in water
» Delay gastric and
intestinal emptying-
promotes a feeling
of fullness, delays
rise in serum
glucose after
eating, decrease
cholesterol
» Barley, cornmeal
» Cereal grains, oats
Insoluble Fibers
» Do not dissolve in
water
» Are not digestible in
the intestine
» Used in preventing
constipation(inc.
peristalsis)( ^ stool
size)
» Seeds
» Bran
» Outer layer of grain
whole meats
Protein
relation to blood
1 gram of Protein equals 4 kilocalories(kcal)
» They are essential for synthesis (building)
of body tissue for growth, maintenance and
repair***
» Main protein in blood is albumin
» Makes collagen, hormones, enzymes,
antibodies (immunity), DNA & RNA
» Blood clotting, fluid regulation and acid-
base balance all require proteins
» Simplest form of protein is the amino acid
-albumin
Carbs deficiency
because the carbs are not doing their job…
Hint type 1 DB pts how do they use their energy ?
ketoacidosis
lack of fiber may play role in colon cancer
heart diabetes
protein deficiency
rare except elderly,fad dieters and hospitalized pts
decreased intake, severe bleeding, starvation and surgery, diseases of GI tract that interfere with absorption and metabolism
helps keep body alkalized ( 7.35- 7.45)
Essential Amino Acids ( define/how much) * HLP*
» 9 Amino Acids
» Come from ingested food we eat.
Examples include:
a. Histidine – apples,
pomegranates, carrots,
spinach
b. Lysine – beef, chicken,
cheese, fish, soybeans
c. Phenylalanine –
soybeans, nuts, beef,
dairy, whole grains
Non-Essential Amino
Acids
( how much/ synthesize/ AAG)
» 11 Amino Acids
» Synthesize by the liver
(body can make them)
» Examples include:
Alanine- clear toxins
Asparagine- brain cells
Glutamic Acid- helps ammonia levels
Complete Protein
remember where its primary coming from and exception
-Containing all (20) essential Amino Acids in
sufficient quantity
» Support growth
» Source animal products and soy
Examples of foods:
Fish
Chicken
Turkey
Milk Products (cheese, yogurt, milk)
Soybeans
Incomplete Protein ( think about if you just had these on yo plate… would you be satisfied?)
They are missing one or more of the
nine essential amino acids
In source plant products
Examples of food products:
Cereals
Legumes (beans, peas)
Vegetables
Complementary Protein (define)
- considered for who?
Pair of incomplete proteins
» When combined they supply the total amount of
amino acids provided by a complete protein
source
» Consider for a vegetarian diet
Examples of food Sources:
Grains + legumes
Legumes + nuts or seeds
+ milk or milk products (cheese)
Beans and rice or tortillas.
* Peanut butter sandwich.
* Macaroni and cheese.
* Tofu with rice (or any grain)
* Hummus with pita bead.
* Grilled cheese sandwich. Yogurt with
nuts.
* Noodle stir-fry with peanut or sesame
seed sauce.
Lipids
1 gram fat=
Fat should be less than ____ of total calories
1 gram fat equals 9 kilocalories(kcal)
» Fat should be <30% of total calories
Make sure yk this :
- Adds flavor (gustatory value) contributing to satiety
- Helps pad skeleton and cushion internal organs from
injury
-Insulates against cold
-Facilitates the absorption of fat-soluble vitamins
(A,D,E, K) when consumed at the same meal
-Combines with proteins as a carrier molecule HDL/LDL
Lipids ( sat vs unsat)
Saturated Fatty Acids » Known as the “bad” fat
(increase LDL & total
cholesterol)
» Usually solid at room
temperature
» Animal (meats, whole
milk dairy, egg yolks),
tropical oils (palm oil,
palm kernel oil,
coconut oil)
» Most stable
Unsaturated Fatty Acids
» Known as the “good”
fat (decrease LDL and
inc. HDL)
» Soft or liquid at room
temperature
» Less stable (more
likely to be rancid)
» Plant fats and
oils
Fatty ( poly vs mono)
POLY relationships normal have 3 people in it.
Monounsaturated Fatty
Acids
lowers blood cholesterol somwehat .
» Heart healthy
» Olives, olive oil,
canola oil, avocado,
peanut oil, and
most nuts
Polyunsaturated Fatty Acids
lowers level of blood cholesterol. increase HDL
» Omega 3 fats =
polyunsaturated fats
in certain fish(tuna,
salmon, anchovy,
sardines) and flax
oil, walnuts, pecans
which help lower
triglycerides & BP
LDL vs HDL ( state norms/functions)
we want LOW Ldl. and HIGH Hdl… number are in alphlabetical order … kinda lol
LDL: carry cholesterols into the cells. forming athersclerosis. Increase risk for coronary artery disease.
HDL: removes excess cholesterol from blood vessel walls and other tissues. High the cholesterol the lower the risk for developing coronary artery disease.
HDL greater than 40
LDL = 100-130 mg
Cholesterols
waxy fat from liver to maintain health.
Saturated fats
raises level of cholesterols