Fat may be considered bad, but the plain fact is that your body does require a certain amount of fat. For women, 6 to 8 per cent body fat is essential fat. You can calculate your fat percentage using BMI index or other fat calculators. If it is way in excess of the essential fat levels, it is time to get into a diet and exercise routine. Cardio exercises are the best to burn off calories and fat quickly. So work out a swimming, cycling and walking schedule. Keep varying your exercise routine. Eat lots of fresh vegetables and fruits and watch your body fat percentage come down to a healthy 8 per cent level.