Stuff to memorize for midterm 1 Flashcards
Carbs = ____ kcal/g
4
Protein = ____ kcal/g
4
Fat = _____ kcal/g
9
Alcohol = ______ kcal/ml
7
Minerals = ____ kcal/g
0
Vitamens = _____ kcal/g
0
What are the 3 macronutrients?
carbs, protein, fat
What are the 2 micronutrients
vitamins and minerals
is alcohol a nutrient?
NO
What is the AMDR for carbs for adults 19+?
45-65%
What is the AMDR for protein for adults 19+?
10-35%
What is the AMDR for fat for adults 19+?
20-35%
What does RDA stand for?
Recommended daily allowance
What does AI stand for?
Adequate intake
What does EAR stand for?
Estimated average requirement
What does UL stand for?
tolerable Upper intake Level
What does DRI stand for?
Dietary Reference Intake
In what order are food ingredients listed in the ingredients list?
by weight, from most to least
How much of a nutrient must a product have to be a “source”
5%
How much fibre must a product have to be a “source”
2g
how much of a nutrient must a product have to be “good/high” source?
15%
how much fibre must a product have to be a “good/high” source?
4g
How much of a nutrient must a product have to be excellent/very high source?
25%
how much fibre must a product have to be excellent/very high source
6g
How much Vitamin C must a product have to be considered high/good source?
30%
How much Vitamin C must a product have to be considered a very high/excellent source?
50%
According to CFG, how many servings of veggies and fruit for a 19-50 year old female?
7-8
According to CFG, how many servings of veggies and fruit for a 19-50 year old male?
8-10
According to CFG, how many servings of grain products for a 19-50 year old female?
6-7
According to CFG, how many servings of grain products for a 19-50 year old male?
8
According to CFG, how many servings of milk and alternatives for a 19-50 year old female?
2
According to CFG, how many servings of milk and alternatives for a 19-50 year old male?
2
According to CFG, how many servings of meat and alternatives for a 19-50 year old female?
2
According to CFG, how many servings of meat and alternatives for a 19-50 year old male?
3
According to CFG, what is a serving of frozen, fresh or canned veggies?
125 ml or 1/2 cup
According to CFG, what is a serving of leafy veggies?
cooked: 125 ml (1/2 cup)
raw: 250 ml (1 cup)
According to CFG, what is a serving of frozen, fresh or canned fruits?
1 whole fruit or 125 ml (1/2 cup)
According to CFG, what is a serving of 100% juice?
125 ml (1/2 cup)
According to CFG, what is a serving of bread?
1 slice (35 g)
According to CFG, what is a serving of bagel?
1/2 bagel (45 g)
According to CFG, what is a serving of flatbreads?
1/2 pita or 1/2 tortilla (35 g)
According to CFG, what is a serving of cooked rice, bulgur or quinoa?
125 ml (1/2 cup)
According to CFG, what is a serving of cereal?
cold: 30 g
hot: 175 ml (3/4 cup)
According to CFG, what is a serving of cooked pasta or couscous?
125 ml (1/2 cup)
According to CFG, what is a serving of milk or powdered milk (reconstituted)?
250 ml (1 cup)
According to CFG, what is a serving of canned milk (evaporated) ?
125 ml (1/2 cup)
According to CFG, what is a serving of fortified soy beverage?
250ml (1 cup)
According to CFG, what is a serving of yogurt?
175 g (3/4 cup)
According to CFG, what is a serving of kefir?
175 g (3/4 cup)
What CFG food group is kefir in?
milk and alternatives
According to CFG, what is a serving of cheese?
50 g (1 1/2 oz)
According to CFG, what is a serving of cooked fish, shellfish, poultry, lean meat?
75g (2 1/2 oz)/ 125 ml (1/2 cup)
According to CFG, what is a serving of cooked legumes?
175 ml (3/4 cup)
According to CFG, what is a serving of tofu?
150g or 175 ml (3/4 cup)
According to CFG, what is a serving of eggs?
2 eggs
According to CFG, what is a serving of peanut or nut butters?
30 ml (2 tbsp)
According to CFG, what is a serving of shelled nuts and seeds?
60ml (1/4 cup)
% Daily Values for total fat, saturated fat and carbs is based on a daily intake of ____ kcal
2000
% Daily Values are nutrient amounts for how many servings?
1
What are the 5 exceptions to the statement “Almost all pre-packaged foods have Nutrition Facts”
- fresh fruit and veggies
- raw meat, poultry, fish and seafood
- foods prepared or processed at the store (i.e. bakery, sausage salads)
- foods that contain very few nutrients (i.e. coffee beans, tea leaves, spices)
- Alcoholic Beverages
Define enrichment
Vitamins/Minerals were put back in because they were lost when grains are refined
Define fortification
Vitamins/Minerals are added to a food product, originally done to prevent disease
i.e. Vitamin D is added to milk
Define Calorie
heat required to raise temperature of 1kg of water 1 degree
change in energy stores =
energy in - energy out
What is negative energy balance?
When energy intake is less than energy need
Result = weight loss
What is energy balance?
energy intake = energy need
result = weight maintenance
What is positive energy balance?
energy intake is more than energy need
result = weight gain
How may kcal does 1 lb of body weight equal?
3500 kcal
What is the basal metabolism?
sum total of energy expended on all of the involuntary activities needed to sustain life; uses energy for breathing, heart, body temperature, tissue renewal, growth
What is excluded from basal metabolism?
digestion
What are the 3 components of energy output?
- Basal Metabolism
- Voluntary Activities
- Thermic Effect of Food
What are the 9 factors that affect the Basal Metabolic Rate (BMR)?
- Age
- Growth
- Body comp. (muscle mass, height)
- physical activity
- health status (fever, stress)
- environmental temperature
- fasting/starvation
- genetics
- thyroxine
Does exercise increase short term BMR or long term BMR?
Long term b/c increasing voluntary activities will increase BMR since lean tissue has a higher BMR than fat tissue
EER= 354-6.91 x factor 1 + factor 2 x [(9.36 x factor 3) +(726 x factor 4)]
Is this the female or male formula for EER?
What are all the factors?
female Factor 1= age Factor 2= PA Factor 3= weight (in kg) Factor 4= height (in meters)
EER= 662-9.53 x factor 1 + factor 2 x [(15.91 x factor 3) + (539.6 x factor 4)]
Is this the female or male formula for EER?
What are all the factors?
Male Factor 1= age Factor 2= PA Factor 3= weight (in kg) Factor 4= height (in meters)
What is the unit for an EER calculation?
kcal/day
What are the 2 aspects of digestion?
Mechanical and Chemical
What are the 5 types of Mechanical digestion?
- Chewing (mastication)
- Peristalsis
- Stomach Action
- Segmentation
- Sphincter Contractions
What does chewing do?
breaks down large molecules and adds saliva
What is peristalsis
wavelike muscular contractions of the GI tract that push contents along
What is stomach action?
circular, longitudinal and diagonal muscles; chyme is released 3 times per minute into intestine
What is segmentation?
periodic squeezing of intestine along its length by its circular muscles; mixes chyme with digestive juices
What is the point of sphincter contractions?
they prevent reflux
are enzymes changed during the chemical reactions that occur during digestion?
no
What is the enzyme that breaks down starch?
amylase
What is the enzyme that breaks down lipids?
lipase
What are the enzymes that break down proteins?
pepsin and trypsin
Where is bile produced?
liver
Where is bile stored?
gallbladder
are vitamins and minerals absorbed or released during digestion?
released
fat and some vitamins mostly absorbed by…
lymph vessels
where is water, sodium and bacterial by products absorbed?
large intestine
Do humans have the enzymes to break down fibre?
NO
How and where is some fibre digested?
by bacteria in the large intestine
What are 2 causes of constipation and hemorrhoids?
- too little fibre
2. lack of physical activity
what are 4 causes of ulcers and heartburn?
- fatty foods
- coffee
- alcohol
- citrus fruits
How can you prevent ulcers and heartburn?
high fibre diet
What is the leading cause of diarrhea
bacterial or viral contamination
What are some ways to prevent diarrhea?
food and water sanitation, immunization and adequate diets
Where does gas (flatulence) in the digestive tract come from? (2 places)
- swallowed air
2. breakdown of certain undigested olds by colonic flora
What causes lactose intolerance?
reduced digestion of lactose due to low availability of enzyme lactase
What is the formula for BMI?
weight (kg)/height^2 (m^2)
What is a good waist circumference for women?
more than 88cm
what is a good waist circumference for men?
more than 102 cm
What is normal body fat for a man of normal weight?
12-20%
What is a normal body fat for a woman of normal weight?
20-30%
What are 3 benefits of physical activity?
- burn calories
- decrease apetite
- increase metabolic rate
Who is eligible for gastric bypass surgery?
- BMI greater than 40
2. BMI 35-40 with serious health problems related to weight
Do fruits and veggies contain fibre?
YES
Do Milk and Alternatives contain fibre?
NO
what simple sugar do milk and alternatives contain?
lactose
What types of carbs are contained in grains and grain products mostly?
mostly starch
Do animal products contain carbs and fibre?
no
Do legumes provide carbohydrates?
Some
What should also increase when you increase dietary fibre?
fluid intake
1 tsp= ___ ml but ___g
5ml but 4g
T or F… Sugar causes dental decay!
TRUE
Are alcohol sugars simple sugars?
yes
What is the sweetest alcohol sugar?
Xylitol
Do alcohol sugars cause toot decay?
NOOO
Why are alcohol sugars limited in use?
due to their tendency to cause diarrhea
Do artificial sugars promote tooth decay or have many calories?
NOO
What’s a good alternative sugar for people with diabetes?
Artificial sugars
What are the 5 artificial sweeteners approved for use in Canada?
- Aspartame
- Acesulfame- potassium
- Sucralose (Splenda)
- Saccharin
- Stevia
- Cyclamates
What are the 2 categories of carbs?
Simple carbs and complex carbs
What are the 2 types of simple carbs?
monosaccharides and disaccharides
What is the type of complex carb?
polysaccharide
What is the primary role of carbs in the body?
to provide energy!
What are the 3 examples of monosaccharides?
glucose, fructose, galactose
Glucose + fructose =
sucrose (table sugar)
glucose + glucose =
maltose
glucose + galactose =
lactose
What are the 3 polysaccharides?
starches, glycogen and dietary fibres
what is the plant storage form of carbs?
starches
what is the human and animal storage form of carbs?
glycogen
What are the 3 components of fibre?
bran (5layers of cell), germ and endosperm
What is the reversible step one of CR?
glycolysis
What is the point of no return in CR?
the complete breakdown of CO2 and H20
What are the 2 types of fibre?
Soluble/Viscous Fibre and Insoluble fibre
What are the health benefits of fibre intake?
- lowers blood cholesterol… decreases risk of heart disease
- modulates blood glucose levels… decreases risk of diabetes
- maintains healthy bowel function
- fosters weight control
What is the minimum required carbohydrate intake?
130g/day
WHO suggests less than ___% of total calories should come from sugars
10%
What is the normal blood glucose range?
3.5-5.5 mmol/L
Insulin stimulates release/absorption of glucose?
ABSORPTION to decrease glucose levels in blood
Low blood glucose levels stimulate the pancreas to release
glucagon to release glycogen stores to increase glucose levels in blood
What is the average age of onset for Type 1 diabetes?
youth-young adult
What is the average age of onset for Type 2 diabetes?
middle age and childhood (NEW)
Which form of diabetes is more common? Type 1 or Type 2?
Type 2
What are the natural insulin levels in Type 1 diabetes?
pancreas makes too little or none
What are the natural insulin levels in Type 2 diabetes?
pancreas may make enough or too much
What is the pancreatic function like in Type 1?
insulin producing cells impaired or non functional
What is the pancreatic function like in Type 2?
insulin producing cells may be normal
What is the severity of symptoms in Type 1?
severe; most present on diagnosis
What is the severity of symptoms in Type 2?
mild; may not all be present on diagnosis
What is the medical management for Type 1?
Insulin Injections for life
What is the medical management for Type 2?
insulin stimulating drugs or may need insulin
What is the lifestyle treatment of Type 1?
diet, physical activity
What is the lifestyle treatment for Type 2?
WEIGHT LOSS, diet, physical activity
What is the fasting blood glucose level to be diagnosed with diabetes type 2?
7 mmol/L
What is the Fasting blood glucose level to be diagnosed with pre diabetes?
5.6-6.9 mmol/L
When is insulin resistance diagnosed?
Fasting blood glucose level larger than 5.6 mmol/L
What causes the insulin deficiency in Type 1?
The person’s own immune system attacking and killing the pancreas portion that produces insulin
What is the possible protection from Type 1?
breast feeding up to 6 months
What is the prevention for gestational diabetes?
exercise, maintaining normal weight, healthy diet
Where does starch digestion begin
Mouth
Where does digestion starches begin?
Mouth- salivary amylase
Where does fat digestion begin?
Mouth- fat digesting enzyme but most occurs in small intestine with lipase and bile
Where does protein chemical digestion begin?
Stomach- pepsin is released