Since muscle tissue is critical in keeping our metabolism elevated, losing it actually leads to a decrease in the amount of calories we can each day without gaining weight.Try to remember that "losing 15 pounds in two weeks" is nothing to celebrate.One pound of weight is equivalent to 3500 calories.

Strive for a weight loss of no more than 1-2 pounds per week.Fat loss is best achieved when weight is lost slowly.

It is important to realize that the more quickly weight is lost, the more likely the loss is coming from water and muscle, not fat.