Midterm Review Flashcards
6 classes of nutrients
- Protein
- Carbs
- Lipids (Fats)
- Minerals
- Vitamins
- Water
*Alc has calories - but not a nutrient
Malnutrition
Any condition that is not receiving proper nutrition, either excess or deficient
Undernutrition
food DEFICIENT
Overnutrition
food EXCESS
Primary Deficiency
Cause by inadequate intake
Secondary Deficiency
Caused by anything other than a inadequate intake - disease condition, drug influence, etc
Energy Levels in Carbs, Protein, Fats
Carbs: 45-65% - 4 kcal/g
Fat: 20-35% - 7 kcal/g
Protein: 10-35% - 4 kcal/g
Macronutrients
BIG nutrients, needed in large amounts (carbs, fat, protein)
Micronutrients
Needed in small amounts (ex. vitamins and minerals)
Essential nutrients
Nutrients that the body cannot make itself, has to be taken in through diet
Inorganic
Don’t have carbon (Water and minerals)
Organic
Has carbon (carbs, fat, protein, vitamins)
Energy Yielding Nutrients
Can be broken down to provide energy for the body. (Carbs, Fat, Protein)
2 things that have greatest impact on body
Smoking and alcohol
Chronic Disease
Long term disease, usually cannot be prevented on good diet alone
5 Key Characteristics of a Good Diet
- Moderation
- Balance
- Adequacy
- Variety
- Calorie control
RDA
Recommended Daily Average: avg nutrient level that meets needs of healthy people
AI
Adequate Intake: Taking recommended daily nutrient intakes
EAR
Estimated Average Requirements - avg daily nutrient requirement
UL
Upper Intake Level: highest avg daily nutrient level
AMDR
Acceptable Macronutrient Distribution Ranges - Values for macronutrients expressed
Discretionary Calorie Allowance
Diff b/w calories needed to maintain weight and those needed to supply nutrients
Saturated
NO DOUBLE BONDS - also more unhealthy
Unsaturated
Double bonds + healthier (ex: fish/veg oil)
Animal + tropical fats
Most saturated
Coconut Oil
Most saturated
Canola Oil
Least saturated
Chylomicrons
Biggest, dietary triglycerides
Lipids: travel in lymph, go into bloodstream, largest and least dense
VLDLs
Carry new triglycerides from liver to body
Lipids: Carry TAG made in the liver to body cells for use
LDLs
Bad, continue to carry excess VLDLs to body; delivering cholesterol
Lipid: Transport cholesterol and lipids to body tissues
HDLs
Good - Scavenges excess cholesterol and lipids from body
Lipids: Carry cholesterol from body cells to liver for disposal
Daily Values
Based on the recommended daily intake levels/standards (5% too little, 15% too much
Nutrient Content Claims
Highlights a nutrition feature like “Low, light, free”
Disease Reduction Claims
Highlight relationship b/w a food or ingredient and persons health
Function Claims
Describe roles of food on normal function
Changes made in Dec 2022 to Food Guide
- Consistent and realistic serving sizes
- Revising daily amount
- Adding new daily amount for total sugar
- Adding potassium to the list of required nutrients
- Adding a footnote about daily amount
- Ingredient list is now listed by most to least weight
Basic Tastes
Bitter, sour, salty, umani (savoury), sweet
Flavour
Total sensory info when food is eaten
Digest
To break down food into smaller molecules
Absorb
Movement of nutrients into intestinal cells after digestion
Where does digestion start?
Begins in the mouth by chewing and saliva moistens food
What liquifies food via peristalsis
Stomach and intestines
The large intestine…
Reabsorbs water and forms feces
The small intestine…
Major focus on absorption
Microbiota
Mix of microbial species in GI tract
Probiotics
Consumable products to strengthen gut