Lecture 1 Flashcards
What is the macronutrient composition of Carbohydrates?
Starches, sugars and glycogen (4kcal/g)
What is the macronutrient composition of Fats ?
Triglycerides and others (9 kcal/g)
What is the macronutrient composition of Proteins ?
Consisting of amino acids (peptides) (4kcal/g)
What is the Average amount of glycogen/fat/protein kg that a person made of ?
0.5 kg glycogen, 15 kg fat and 12.5 kg protein
What % of nutrients does the UK diet roughly consist of …
45% Carbohydrates
40% Fats
15% Protein
What is alcohol?
Ethanol (7 kcal/g) -From alcohol- No storage form
3 components of energy expenditure
Physical activity thermogenesis
Diet-induced thermogenesis
Resting metabolic rate
From the Average daily intake, how much energy (in %) is stored from the 3 main nutrients?
Fat stores, 55 x daily energy intake
Protein stores, 20 x daily energy intake
Carbohydrate stores, <1 x daily energy intake
Hunger is caused by the
Absence of fullness
What is the ratio for Saucepan and Bathtub
Ratio of energy content of an average meal to body energy stores is about 1:180.
Why do both the gut and body fat stores resist being filled
Negative feeback
What did the Mars bar study find out about memory ?
Impaired memory performance of dieters; non-dieters were the same
Thoughts about food for dieters saw a huge increase after eating a mars bar; slight non-significant increase for non-dieters
Dieters mood ratings significantly decreased after eating the mars bar
What are the main Methods used in N&B?
Observational (correlational)
Quasi- Experimental (NOT randomly assigned but natural)
Intervention experimental (random allocation)