In order to make sure that our calorie intake is adequate we need to monitor our lean body mass, this is done by having our body fat percentage done on a weekly basis, body fat percentage can be done by two means, (1) By callipers, any gym should have callipers and someone experienced enough to use them and monitor the results, with this type of testing it is important to have the same person doing the testing, that way the results would be more accurate. The principle behind this method is that the amount of subcutaneous fat is proportional to the total amount of body fat. However, the exact proportion of subcutaneous to total fat varies with gender, age, (2) By Bioelectrical Impedance Analysis, (BIA) this method is easy to administer, non-invasive and a safe method. BIA involves passing a small electric current through the body and measuring the impedance or opposition to the current flow. Fat free tissue and water is a good conductor of electrical current, whereas fat is not. The resistance to the current flow is related to fat free mass and total body water, both can be predicated by this analysis. This type of testing is either done by a hand held device or a four lead test, in which four leads are attached to the client whilst they are lying on an examination table.