Diet (1.2) Flashcards
daily recommended calories men/women
men - 2,550
women - 1,940
athletes require more
macro nutrients (2)
nutrients required in large amounts
e.g carbohydrates, fats, protein
carbohydrates
.essential for energy production
.stored in form of glycogen in the liver + muscle sarcoplasm
.simple + complex
simple carbohydrates
contain 1 or 2 sugars
monosaccharides / disaccharides
e.g sweets, fizzy drinks, table sugar
monosaccharides
contain 1 sugar
fructose - found in fruits
galactose - found in milk
disaccharides
contain 2 sugars
sucrose - table sugar
lactose - dairy
complex carbohydrates
'starchy foods' 3 or more sugars - polysaccharides beans lentils potatoes cereals
proteins
.milk, eggs, meat, soya .broken down into amino acids - essential for growth/repair .21 total .12 created by body naturally .9 from our diet
fats
.small amount is a source of essential fatty acids
.high in energy - used for aerobic respiration in certain situations
.saturated or unsaturated
unsaturated fats
healthier
nuts, avocados, oils, some fish
can be liquid at room temp (olive oil, fish oil, sunflower oil)
saturated fats
unhealthy
dairy, chocolate, pastries
typically solid at room temp
micro nutrients
nutrients required in small amounts
vitamin and minerals
minerals
essential to maintain bodily functions
e.g zinc, magnesium, iron, calcium
found in meat, cereals, pulses, nuts
vitamins
.essential for maintaining natural bodily functions
.fat soluble vs water soluble
fat soluble
can be stored in body
eggs, veg oil, animal products
vitamins D,E,K,A
water soluble
fruit, veg, grains, milk
cant be stored in body so require regular intake
vitamins C, B
Water
vital for body functions
regulates temp, transports oxygen/vits/mins/glucose
60-70% of body is water
Fibre
aids with health/function of intestines
found in cereals, fruit, veg
regulates levels of cholesterol in blood
Eat well Plate
outlines % of each food category that leads to healthy, balanced diet
Eat well plate %
33% fruit/veg 33% CHO 14% milk/dairy 12% protein 8% sugary/fatty
balanced diet
55% CHO 30% fat 10% protein include foods from '5 a day' for vits/mins water
device used to measure energy values of food
and
energy values of: CHO, protein, fat
use a bomb calorimeter
1g carbohydrate = 4kcals
1g protein = 4kcals
1g fat = 9kcals
calorie def
amount of energy/heat needed to raise temp of 1g of water by 1 degree celcius
basal metabolic rate
lowest rate of energy needed to sustain body’s essential physiological functions
resting metabolic rate
lowest rate of energy needed to sustain body’s essential functions (not including sleep)
metabolic equivalent tasks (METS)
.calculation of energy expenditure of a physical activity
.ml o2/kg/min
thermic effect
energy used in process of digestion (eating, absorbing, using food)