Nutrition Flashcards
What are the factors that affect food choice?
Cost Availability Nutritive value Senses Advertising Marketing Culture Health status
What is a nutrient and what are the 6 nutrients?
A nutrient is a chemical found in food. They are: Protein Fat Carbohydrate Mineral Vitamins Water
What is a macro nutrient?
A macronutrient is a nutrient that is needed by the body in large amounts. They are protein, fat and carbohydrates
What is a micro nutrient?
A micronutrient is a nutrient needed by the body in small amounts. They are vitamins and minerals
What is a balanced diet?
A balanced diet is all the nutrients in the correct amounts for the needs of the body
What is malnutrition?
It is caused when a person does not get enough of food, too much of all food, or missing one particular nutrient.
What are the fat soluble vitamins?
A
D
E
K
What are the water soluble vitamins?
B
C
Composition of protein?
Carbon Hydrogen Oxygen Nitrogen Amino acids
Classification of protein?
High biological value- meat fish eggs cheese milk soya products
Low biological value- cereals pulse veg nuts seeds
Functions of protein?
Growth
Repair
Heat energy
To make hormones, enzymes, anti bodies
Rda of protein?
I gram of protein per I kilogram of body weight
Energy value of protein ?
1g releases 4 kilocalories or 17 kilo joules
Composition of lipids?
Carbon
Hydrogen
Oxygen
Glycerol and fatty acids
Classification of lipids?
Saturated- animal fats, solid at room temperature
Unsaturated- plant and fish oils; liquid at room temperature