Introduction to nutrition Flashcards
1
Q
Macronutrients
A
- Protein
- Fat
- Carbohydrates
- Alcohol
2
Q
Micronutrients
A
- Vitamins
- Minerals
- Trace elements
3
Q
Water
- energy
A
Does not contribute energy
4
Q
Measurement of food energy
A
- Joule (J)/kJ
- Kcal (kilocalorie) - 4.184kJ
5
Q
Energy value of food
A
Lipids most energy dense, carbs least energy dense
6
Q
Energy value of food
- What its based on
A
Based on the heat of combustion in a bomb calorimeter
7
Q
Metabolisable energy
A
gross energy in food - energy lost in faeces, urine, secretions and gases
8
Q
Kcal (how to work out)
A
weight x Atwater factor (Kcal/g)
