I'm 30 , 18 stone 7 and 5ft 11 i've started waking 5 miles a day and cut out sweets and cakes will this help me loose weight ?

Yes. It is calories.: Sounds good. One should choose an exercise he really enjoys. Any form of exercise burns calories, so if one does not eat or drink more calories than he is using during his exercise, then his body will burn up fat as fuel. However, if a person drinks a large orange juice (about 300 calories) while exercising, and exercises away only 200 calories, he will still gain fat even though he is exercising.