Unit 7 Ch 17 Flashcards
(39 cards)
Calories are considered to be?
– Kilocalorie Unit of expression of energy equal to 1,000 calories.
• Amount of heat energy required to raise the temperature of 1 kilogram or liter of water 1 degree Celsius
– Calories to tell us how much energy is contained in food – Carbs and protein contain 4 calories per gram
– Fats contain 9 calories per gram
– Alcohol contain 7 calories per gram
– Calorie is the term that will be used instead of kilocalorie.
Who’s scope of practice is nutrition?
Client’s with health issues
• Refer to a registered dietician
– Cannot provide written diets to clients
– Can provide information listed in the chart below
Look at: Table 17.2 in book
What types Total energy expenditure (TEE) are there?
- Amount of energy (
- Resting metabolic rate (RMR)
- Thermic effect of food (TEF)
- PhysicalActivity
Amount of energy:
(calories) spent, on average, in a typical day.
Resting metabolic rate (RMR):
- Amount of energy expended while at rest.
* 70% of total energy expenditure
Thermic effect of food (TEF):
• Amount of energy expended above RMR as a result of the processing of food (digestion) for storage or use
• 6-10% of total energy expenditure
PhysicalActivity:
•Amount of energy expended above RMR and TEF associated with physical activity
• 20% of total energy expenditure for a sedentary person
What types of macronutrients are there?
Proteins
Carbohydrates
Fiber
Lipids
Proteins:
Build and repair body tissue
– Can be converted into fuel if running low on carbohydrates or energy
– 4 calories per gram
– Made of amino acids
• Can create different types of protein
-Must be broken down into amino acids to be absorbed
Proteins are made up two types of amino acids called:
- Essential
* Nonessential
Essential:
Must get these from our diet
Nonessential:
Can make within our body
Breakdown of amino acids:
•Starts in the mouth with chewing
• Stomach is where the protein is denatured (uncoiled or broken down) into smaller peptide chains
• Intestines break the peptide chains down into the amino acids that can be absorbed into the blood stream
• In the bloodstream the body will use the amino acids to build muscle, convert into energy if needed (gluconeogenesis), or if excess of calories will be stored as fat
Types of protein sources:
- Complete protein
- Incomplete protein
- Limiting factor
Complete protein:
- Contains all essential amino acids in the right ratio.
* Meats and dairy products
Incomplete protein:
- Low or lacking an essential amino acids
* Peanut butter
Limiting factor:
• Amino acid missing in the smallest amount
• Food lacking amino acid is not combined with a source high in that missing amino acid the body will only be able to synthesize protein until the limiting amino acid runs out
Protein requirements:
– Exercise can increase the need for protein
– Requirements increase when overall energy intake decreases
• Will be burned for energy if not getting enough calories
• Excess calories protein will be stored as fat
• Adequate carbohydrate levels will spare protein for tissue building and repair
– 10%-35% of diet
– Provides satiety
– Very high protein intake above 35% is not recommended
• Higher intake of saturated fat
• Low fiber intake
• Decreased glycogen stores
• Dehydration
Study table 17.6
Carbohydrates:
– Sugar, starches, and fiber
– 4 calories per gram
– Primary energy source for all body function and muscular exertion
Through digestion disaccharides and polysaccharides are broken down into monosaccharides
– Glycemic index (GI)
– Excess carbohydrates will be stored as fat
– Carbohydrates do not cause weight gain, but the excess consumption of calories.
Types of carbohydrates:
Simple carbohydrate
Complex carbohydrate
What are the two Simple carbohydrates?
- Monosaccharide
* Disaccharides
Monosaccharide:
Glucose, galactose, fructose
Disaccharides:
Sucrose, lactose, maltose
Complex carbohydrate:
Polysaccharides
•Starch