WHAT FUEL DOES YOUR BODY NEED!
Protein, carbohydrates, fat, vitamins, minerals and water, your body needs all of these, but what are they?
There are 20 chemicals called amino acids, which join together in different ways to make thousands of different proteins.
Where do they come from?
11 of these amino acids are made by your body and are called 'non-essential' amino acids.
The other 9 'essential' amino acids you have to get by eating the right foods.
What does protein do?
It is a very important nutrient because it builds up your muscles, organs and glands. It helps repair and replace them too, so that your body can keep on working.
Some of the things it makes:
- haemoglobin - which carries oxygen around the body in your blood.
- antibodies - to fight diseases
Where do you get it?
- If you eat meat, chicken, fish, eggs, nuts, dairy products and legumes, then you've got it!
- Protein from animal foods has all the essential amino acids you need. Plant foods have each got some of them.
You need to eat a wide variety of plant foods.
You could mix cereal with milk, nuts and fruit or have a peanut paste sandwich and a piece of fruit.
There are two types of carbohydrates:
- Sugars - simple carbohydrates (because your body digests them quickly and easily)
- Starches - complex carbohydrates (it takes your body longer to digest them).
- They give energy to all the cells in your body.
- They produce glucose.
- Glucose gives you quick energy, but your body cells can't use heaps of it all at once so it saves some in your liver and muscles, as glycogen.
So, if your body runs out of glucose it switches to the reserve tank,glycogen. Once there is enough glycogen stored in your liver and muscles the rest turns into fat.
Some simple carbohydrates come from 'sometimes' foods like fizzy drinks and lollies, which have lots of sugar and don't have important vitamins which your body needs. But many come from foods such as apples, bananas, grapes, raisins, as well as low-fat ice cream and yummy frozen yoghurt. These give you extras such as vitamins and minerals.
Complex carbohydrates come from food like bread, cereals, pasta and vegies like corn, potatoes and carrots. They give you energy more slowly so it lasts longer and they have heaps of vitamins and minerals, which your body needs.
What is Fat? In your body, it is the way you store energy for later.
There are three types of fat that we eat.
- Saturated fatty acids - from animal foods, dairy foods and some oils that come from plants.
- Unsaturated fatty acids - from plants, fish and most plant oils.
- Mono unsaturated fatty acids - from some plant products such as olive oil and canola oil.
Some good things about fat.
- acts as the body's reserve tank of energy
- protects our organs - like a cushion
- helps our bodies stay warm in cold weather
- helps hormones keep blood pressure steady
- helps keep skin and hair healthy
- gives some vitamins a place to stay and helps them get round in the blood to where the body wants them.
- There is fat in lots of good foods such as meat, eggs, cheese - but sometimes there is too much in fast foods, chips, biscuits and many of the 'sometimes' foods.
- lead to obesity (when a person weighs too much for his/her height and body type)
- lead to illnesses when you're older (heart disease)
- make you feel bad because you're not getting enough of the good foods to keep you healthy
- make you feel bad about what you feel you look like.
- Choose low fat milk, yoghurt, cheese etc.
- Cut fat off meat before cooking/eating.
- Avoid fried food and pastries (make them 'sometimes foods').
- Avoid chicken skin.
Your body needs water to work well too. The water in blood carries food to all parts of your body.
Aim for balance in your food. Keep your body in the mood. Lots of water and exercise will keep the sparkle in your eyes.