In reply to KatieG:
> (In reply to SophieF)
> Run intervals - Do lots of squats - Eat 1,500-1,800cals a day depending on how much you are running that day (8miles plus then 2,000 cals)- Limit fatty foods, fizzy drinks, 'bad' carbs..
Not good advice.
Intervals are good way to get quicker at running, not a good way to burn extra calories.
Limiting your calorific intake will also reduce your ability to train- which will ultimately reduce the calories you can burn, and limit your ability to develop a phyisique that can burn lots of calories.
In the long run, it's doing long runs.