Exercise every day. Exercise is essential in losing weight because it is the fastest way to burn calories. A University of Pittsburgh study says you need to exercise for 55 minutes 5 days a week to lose weight; however, you want to lose weight in 5 days so you will need to exercise every day for 5 days. You'll want to do activities that burn the most calories. ProHealth.com says a 150 lb. woman who runs for an hour will burn nearly 550 calories; that same woman will burn 680 calories vigorously biking for an hour.

Eat breakfast. A big breakfast right away in the morning will kick start your metabolism and help you burn more calories throughout the day. If you want to lose weight in 5 days, you need to eat breakfast because it is the most important meal of the day. Eating egg whites is the best choice for breakfast. They are loaded with protein, and protein will give you the energy you need to work out. Eat three egg whites each morning.

Drink water. Drinking water increases your metabolism and flushes out your system of toxins. It will keep you hydrated and give you an extra boost of energy to complete your workouts. You should drink at least eight 8-oz. glasses of water per day.

Avoid carbs. Carbohydrates are not used right away by the body, so they are stored as fat. If you want to lose weight in just 5 days, it is essential to limit your carbs. The less carbs you eat, the less fat is stored, and the more fat you can burn.

Reduce your calories. This is the most important step to losing weight in a short period of time. One pound is equal to 3,500 calories. So, if you reduce your calories by 700 each day, you will be able to lose 1 lb. in 5 days just by cutting back on your food intake.

Eat a piece of fruit before your meal. Eat a banana or an apple before breakfast, lunch and dinner. This will help fill up your stomach before you eat the main portion of your meal, so you will eat less.

Take deep, slow breaths for 10 minutes every day. Count to 10 as you breathe in slowly, then breathe out while you count to 10 slowly. Deep breathing helps you lose weight because of the added oxygen from taking bigger breaths. The more oxygen you get into your body, the more fat you burn off from oxidation. The National Institute of Health says breathing deep for 10 minutes a day will lower your blood pressure and help you lose weight.