Glycaemic Load And Index Flashcards
What dose the glycaemic load tell us
How much glucose a food contains and how quickly the glucose is released
This information can be used for
People when they want to lose weight
If a food has a low glyceamic index then
The glucose is released more slowly making you feel fuller for longer less likely to over eat
To find the glyaemic index scientists did what
Feed volunteers enough of one food to have 50g of glucose and took blood samples to see the raise in glucose in the blood
The more glucose that is released by foods the
More quickly it is released
The pancreas is stimulated to release
Insulin
Insulin cause what
The liver and muscles to store glucose as glycogen
If glucose levels stay to high for to long then the fluency is stores as
Fat
The release of insulin causes the blood to
Glucose level to fall
If you have a dip in glucose levels the you feel
Hungry again
Overeating can cause
Obesity
A GI of 70 or over is
High
A GI of 56-69
Is medium
A GI of 55 or less has a
Low GI
If food has other element in I
It may effect the rate at which the glucose is released into the blood
Starch molecules can be different in different plant cells
The exact shape of a starch molecule and the amount of branching it has can vary
This will effect how quickly it is
Hydrolysed by enzymes and absorbed into the blood
Whether starch is combined with a Surrey fibre as Surrey fibre dose what
Slows down absorption of sugars
Glycemic load
For the portion of food is calculated as the quantity of the carbohydrates content
What is the formular
Glyceamic load = carbohydratescpntent of food x GI of food divided by 100
GL of 20and or more
Is high
A GL OF 11-19
Is medium
A GL of 10 or leas is
Low
Low carbohydrate diets is baked on what
Glyceamic index
