Food
Water
- dehydration can cause low blood pressure
- 2/3 body
- is a reactant
- dissolves other chemicals
- 90% blood is water
Fibre
- aka roughage
- found in cell walls : cereals, veg , fruit , nut and seeds
- not fully broken down
- speeds movement of matter
- no fibre = food take long time process in the large intestine
- soaks up toxic waste