Carbohydrates are the bodies favourite energy source.
Carbs are the favourite energy source because they access rapidly
Glucose are the only fuel source for brain tissue.
- Primary energy for endurance sports
- CNS energy
- Fat metabolism cant occur unless carbs are present
- Spares protein making the protein avaible for blood ext
All carbs are made up from simple sugars or mono-saccharides.
Monosaccharide, disaccharides or Polysaccharides
Simple Carbs
Mono & disaccharides are found in fruits , honey & milk- arranged on different ways to effect sweetness
Simplest of all carbohydrates are glucose because of their accessibility – absorbed int he small intestine/ stored in the liver and muscles.
Glycogen is broken down to form ATP
Complex Carbs
Contain nutrients, proteins, vitamins and fibres.
Complex carbs have a low calories and high fibre content
These carbs require energy to be transformed into fat
- 300 Kcal excess from Carbs – leaves fat 230 kcal
- 300 kcal excess from fat – leaves fat 300 kcal
The liver is responsible for controlling blood sugar levels
not enough glucose leave you felling dizzy or weak, where too many glucose can give you confusion and difficulty breathing.
Body’s glucose are closely regulated
- Insulin = moves glucose from blood to cells
- Glycogen = moves glucose out of storage when required
Pancreas
After a meal glucose rise in the blood stream, insulin is produced from the pancreas ,this makes cells uptake glucose, and store them in the muscles and liver. In between meals the pancreas makes glycogen and supplies the blood stream, reversing the effect of the insulin so they are available for internal body use.
Carbohydrates = Carbon, Hydrogen and oxygen ( C,H,O)
