Nutrition
Nutrition
Today
Nutrition
Test
practical
learning objective
You can name the functions of nutrients in foods.
You know 6 groups of nutrients with their functions and characteristics.
Nutriens: usable components in food
Dietary fibre: are indigestible parts of the plants
vegetable produces
Animal products
Function of Nutrients
Building blocks: grow/develop/repair
Fuels/Energy-rich: by respiration in cells to provide energy
protection: to stay healty
6 groups of nutrition's
carbohydrates
fats
proteins
minerals
vitamins
Water
Carbohydrates
includes: glucose, sugars, starch, glycogen
at first they are used as fuel
than: buildingblocks and reserves
glucose high: converted into glycogen and stored in liver and muscles.
glucose drops: glycogeen converted into glucose and released into the bloodstream
fats
primarily used as fuel
also as buildingblock or reserves
reserves are stored beneath your skin
the subcutaneous fatlayer becomes thicker.
mostly you eat more fat than you need
Te veel vet -> slechtere werking
Proteins
Important buildingblocks:
for example when cytoplasm is formed
as Fuel
Which foodstuffs contains proteins?
beans, yoghurt, cheese, eggs, redmeat, chicken, fish, tofu
Food that contain a lot of protein
Water
Your body is made up of 60% water
has a key role in transporting substances around your body
most substances can be only transported properly if they are dissolved
Minerals (of salts)
- Buildingblocks. Like calcium for strong bones
- For protection
- not to much each day
read: '5000 deaths anually because of to much salt': page 51
Vitamins
buildingblocks and protection
without you will become ill
consuming large quantities will make you ill as well
-A: producing skin and seeing well
-B12: Red bloodcells
-C: resistance
-D: Strong bones
Healty food
What is the basis for healty eating?
The basic for healty nutrition is variation (wheel of 5)
Also the food has to be safe. Not contaminated with germs.
Food poisoning: germs, bacteria, chemicals (see 7.5!!)
Advice for healty eating
Wheel of five: each part for daily basis
saturated fats: animal fat
unsaturated fats: fish and vegetable oil