With the safe and reliable weight-loss combination of diet and exercise, it’s difficult to lose more than about a pound within a four-day period of time. However, depending on how much you weigh and the techniques you employ to slim down, it could be possible to lose 3 pounds or more in as many days.

With meats and veggies on the menu, the low-carb diet is designed to help your body burn fat and lose weight. Although bacon, butter and cheese are allowed, you can up the nutritional quality of your low-carb plan by choosing healthier proteins and fats, including omega-3 rich salmon and olive oil.

Many people have experienced the frustration of watching the numbers on the scale go down only to creep back up over time. The natural tendency of your body is to defend a weight that feels biologically comfortable, which makes weight change tough for many. This notion is referred to as "set point."

If you have access to a pool, moving your workouts into the water is a great way to burn belly fat. Not only are swimming and water aerobics great cardio exercises, every move you make in the pool challenges your muscles since the water creates constant resistance.

Yohimbine supplements are used to improve sexual performance, increase energy and promote fat loss. While certain uses of yohimbine have been studied, the evidence linking yohimbine with weight loss is very limited.

Slim Fast provides relatively low-calorie, nutritional meal replacement products in the form of milkshakes. They come in four different flavors: chocolate, vanilla, strawberry and cappuccino.

Diet drinks are popular because they are convenient to take on the go and can help to curb your appetite. Diet supplement drinks come in a variety of formulations. Some of these supplements are low in calories and contain stimulants and appetite suppressants, while others are intended as low-calorie meal replacements.

Academic studies, after school jobs and extracurricular activities can quickly consume teenagers' calendars. With busy schedules and multiplying obligations, the recommended 60 minutes or more of physical activity each day might initially seem impossible.

Excess fluid in your body results in swelling, or edema. Heart failure, kidney disease, medications, premenstrual syndrome and pregnancy may result in fluid retention, according to MedlinePlus.com. Your body also may retain fluid if you consume too much sodium or remain in the same position for too long.

Third shift workers live a unique life. Your time schedule is completely the opposite of people who live and work during daylight hours. Eating can become a challenge for you, as most restaurants are not available for service during the wee hours of the night.

It's not a secret that obesity negatively affects your health and well-being.

Gastric bypass surgery shrinks the size of your stomach to help you lose weight. Surgeons close off most of your stomach with staples. The new, smaller size helps you feel full quickly, making it easier to stop overeating.