Nutrition COPY Flashcards
Why do we eat food/
To give us a feeling of fullness The social aspect To get goodness out of it To prevent illness To keep us occupied
What goodness do we get from food
Strong bones and teeth Energy Growth Prevent constipation General good health
Macro nutrients
Our bodies need these in large amounts.
They are too big to be absorbed by the body so they must be broken down.
Protein, fats and carbohydrates.
Micro nutrients
Our bodies need these in small amounts.
They are small enough to be absorbed by the body once eaten.
Minerals and vitamins
Protein structure
What is protein made of?
What are aminos acids joined by?
Proteins are made up of amino acids
🎾⚽️🏐🏀🏉🏈⚾️🥎
Amino acids are joined together with peptide links
High biological value protein
Contains all essential amino acids.
Essential amino acids are the amino acids the body needs but cannot make so must get them food.
Normally come from animal foods
Low biological value protein
Do not all essential amino acids.
Normally come from vegetable foods.
High biological value Low biological value
High biological value ⬇️. Low biological value ⬇️
Meat, fish,eggs and cheese. Peas,beans,nuts and pasta
🥩 🍣 🥚 🧀 🍲 🥫 🥜 🍝
Biological functions of protein
Growth.
Repair of worn out or damaged cells.
Production of hormones, enzymes and antibiotics.
Gives us energy and heats our body.
Classification and sources of fats.
Saturated fats. Unsaturated fats
Milk,cheese,meat,butter. Oil,oily fish,nuts,seeds
Biological functions of fats
Gives our bodies heat and energy.
A layer of fat in the skin insulates our body keeping us warm.
Delicate organs in the body like the heart and kidneys are protected by a layer of fat.
How much fat do you need.
Adults no more than 70 grams of fat daily.
20g of saturated fat.
Unsaturated fats such as olive oil are better for our health than saturated fats such as butter.
Too much fat in the diet
What happens?
What disease?
Overweight and obesity.
Too much fat can cause heart disease
How to reduce fat intake
Grill,bake,boil or microwave instead of frying.
Cut visible fats off meat.
Use low fat food.
Cut down on fatty foods like chocolate,crisps,chips etc..
Classification and sources
Sugar. Starch. Fiber
Honey, Potatoes, Brown bread,
Fruit and Pasta,rice. Whole meal pasta,
Ice cream. and bread. Rice,nuts,seeds,fruit
and vegetable skins
