Booklet 2 Test (A Lot Of Info) Flashcards
What are the 7 factors that influence a persons energy requirement
-Gender
- Activity level
- Age
- Size/genetics
- Pregnancy/lactation (200 kcal extra for the last 3 months)
- Lifestyle
- Deficiencies/excess.
What is energy?
The power used to do work to produce heat or light
What is 1g of carbs, protein and fat in kcal?
1g Carbs = 3.75kcal, 1g protein = 4kcal, 1g fat = 9kcal
Why is alcohol not considered a nutrient?
Does provide with energy, but not essential for survival
Name one alcohol related disease
Liver disease
What is the EAR (Estimated average requirement) for energy in %
Carbs = 50%, of which no more free sugars 5%. Fat is no more then 35%, or which sat is no more then 11%. Protein is 15%.
Average energy intake of a 15-18 year old for female and male and why do males need more?
Female is 2110kcal, male is 2755 kcal. Males have more because there have more muscles and are physically larger.
BMR stands for? and what does it mean?
Basel metabolic rate, means the rate at which a person uses energy to maintain the basic function of the body eg. breathing
Which percent of energy use is for muscle movement, and which percent of energy use is for body processes?
30% for muscle movement, 70% for body processes
PAL stands for what?
Physical activity level
Daily food energy requirement is calculated how?
PAL x BMR
If intake of food eaten and activity BMR is the same, what happens to your weight?
Stays the same
If intake of food eaten is higher then your activity BMR, what happens to your weight?
Increases
If intake of food is lower then your activity BMR, what happens to your weight?
Weight loss
BMI stands for what?
Body mass index
How do u calculate BMI?
Weight (kg) / Height squared (m)
Lower energy density foods make you fuller/not as full as high energy density foods?
It makes you fuller
How do you calculate energy density?
Energy (kcal) divided by weight (g)
How is energy density affected?
Water, fat, fibre
The fuels and chemicals we need for our bodies are called ?
Nutrients
The nutrients we eat are divided into two main groups:
Macronutrients and micronutrients
What are macro nutrients?
Fat, carbs, protein
What are micro nutrients?
Vitamins, minerals, and trace elements
The body needs other substances eg w_____ and f____
Water and fibre
Low biological value foods are from?
Plant sources
High biological value foods are from
Meat sources,fish sources and soya beans
Simple carbs only provide what?
Short term energy such as sugary foods.
Complex carbs provide only what?
Long term energy eg bread, rice, potatoes
NSP (Non starchy polysaccharides) are also called what?
Fibre
Name 2 sources of unsat fat
Avocado, olive oil
Free sugars are?
Added to food and drink or naturally in juices eg apple juice
Which two vitamins are water soluble?
B, C
Which 4 vitamins are fat soluble?
A, D, E, K
What is the function of Vitamin B?
Healthy brain function and formulation of cells and immune system support.
What is the function of vitamin C?
Maintain healthy gums, skin, and builds immunity.
What is the function of calcium?
Keeps bones strong
What is the function of iron?
Healthy haemoglobin
What is the function of potassium?
Regulates heartbeat
What does DRV mean?
Dietary reference value
Reference nutrient intakes are used for
Macronutrients, vitamins and minerals, they’re an estimate of the amount that should meet the needs of most of the groups to which they apply.
EAR is used for
Energy (kcal)
Lower reference nutrient intakes are
Intakes below the LRNI are certainly not enough for most people
DRV (%) for Total Carbohydrate and free sugars is:
50% and no more then 5%
DRV (%) for Total fat and of which sat fat is
No more then 35%, no more then 11%
Total carbohydrates includes?
Starch, sugars and dietary fibre
Total fat is
Unsat and sat fat
If you have a high sat fat intake, it is linked to what?
High blood cholesterol which can lead to coronary heart disease
How much fibre should you have a day?
30g
You should have how many grams or less of salt a day?
6
Why are nutrition labels on packaged food used?
Help the consumer make better choices for a healthy diet
Protein provides the body with…?
Energy
Protein is needed for
Growth and repair of body tissues, forms enzymes and hormones, maintenance of cells, transports iron
Excess protein is broken down and used as
Energy
Is protein the a) first highest b) second highest c) very small, compound in the body
B) second highest compound, water n1
Protein are made of small units called?
Amino acids
Amino acids are compounds containing
Carbon, hydrogen, oxygen and nitrogen (sometimes sulphur)
How many common amino acids are there? and how many of them are essential?
20 common, 8 of which are essential
Children need how many more essential amino acids?
2 more
If a protein has all of the essential amino acids, it is called…?
A high biological value food
If a protein does not have all the essential amino acids, it is called?
A low biological value food
The limiting amino acid is
The amino acid shortest in supply
Give 4 sources of HBV proteins:
Fish, eggs, meat, soya beans (only vegan HBV) ,chicken, cheese
Give some LBV proteins
Nuts, peas, beans, seeds, lentils, cereals
If LBV proteins are combined, they can provide all the amino acids needed for our bodies, this is called…?
Protein complemention
An example of protein complemention is…?
Bread and baked beans
If children have too little protein, they can suffer from
Slow growth, digestive upsets, liver fails to function normally, muscles weak and limbs thin.
If excess protein isn’t used for energy, it is converted to
Fat
PEM stands for?
Protein energy malnutrition
Yeast is what type of raising agent
Biological
Function of fat:
Concentrated source of energy, provides essential fatty acids, component of hormones, carries the fat soluble vitamin A,D,E,K. Surrounds and protects vital organs/kidneys, and forms an insulating layer keeping the body warm.
Fats are a combination of which 3 atoms?
Hydrogen, carbon, oxygen
Saturated fats are usually ….. at room temperature and are classed as … fats eg fat on meat, butter, lard, coconut oil, palm oil.
Solid, bad
Eating too many foods high in sat fat is associated with
Raised blood cholesterol, which is a risk factor for coronary heart disease
You should replace sat fat with unsat fat as it has benefits to
Heart health
Unsat fat can be classed as monounsaturated and ____unsaturated
poly
Monounsaturated fats are ____ at room temperature but will ______ in the fridge
Soft, harden
Foods high in monounsaturated fats are
Olives, olive oil, avocado and avocado oil, nuts, oily fish
Monounsaturated fats can help lower blood … reduce the risk of … and are linked with a lower rate of cancer.
cholesterol, diabetes
Polyunsaturated fats are ____ and oily at room temperature and will not _____ in the fridge.
Soft, harden
Foods high in polyunsaturated fatty acids include…
Sunflower oil, seeds, spreadable fats made from veg oil, oily fish
Essential fatty acids are fatty acids that aren’t able to be … by the body, but are important for the body to make it function …
Made, efficiently
Polyunsaturated fats help reduce blood cholesterol but also
Have functions in growth, development and health
The two most important fatty acids are
Omega 3, omega 6