If you are 5' 6 in weighing 150 lbs how much weight should you loose?

Some of this should depend on your measurements and your body fat percentage. What you may find is that as you gain more muscle and less fat, you may appear smaller but actually weigh more. You are actually exactly my size, and I have been a size 0 with less than 10% body weight (competitive swimmer - though really, for a girl this is unhealthy) and a size 7 with some definite jiggle (23% body fat) while maintaining the same weight. With that sizing, your BMI would be 20.7. You can calculate this at http://www.nhlbisupport.com/bmi/. BMI Categories: * Underweight = <18.5 * Normal weight = 18.5-24.9 * Overweight = 25-29.9 * Obesity = BMI of 30 or greater As you can see from the categories, you are completely within the normal and healthy range. I personally have never been a fan of BMI as it doesn't take into account a persons body fat to muscle percentage. You can have this caculated with calipers, via a water displacement test (the most accurate) or with a handheld BMI calulator. These use electrical pulses to guestimate your percentages. They are easily thrown off by the amount of air or water trapped in your system however. The short answer is this: don't worry about the number on the scale, worry about how you feel, how you look (as in how well your muscles are defined and the measurements of your body), and if you choose, your percentages. Just remember we are more than what number we see on the scale. Some of this should depend on your measurements and your body fat percentage. What you may find is that as you gain more muscle and less fat, you may appear smaller but actually weigh more. You are actually exactly my size, and I have been a size 0 with less than 10% body weight (competitive swimmer - though really, for a girl this is unhealthy) and a size 7 with some definite jiggle (23% body fat) while maintaining the same weight. With that sizing, your BMI would be 20.7. You can calculate this at http://www.nhlbisupport.com/bmi/. BMI Categories: * Underweight = <18.5 * Normal weight = 18.5-24.9 * Overweight = 25-29.9 * Obesity = BMI of 30 or greater As you can see from the categories, you are completely within the normal and healthy range. I personally have never been a fan of BMI as it doesn't take into account a persons body fat to muscle percentage. You can have this caculated with calipers, via a water displacement test (the most accurate) or with a handheld BMI calulator. These use electrical pulses to guestimate your percentages. They are easily thrown off by the amount of air or water trapped in your system however. The short answer is this: don't worry about the number on the scale, worry about how you feel, how you look (as in how well your muscles are defined and the measurements of your body), and if you choose, your percentages. Just remember we are more than what number we see on the scale. Some of this should depend on your measurements and your body fat percentage. What you may find is that as you gain more muscle and less fat, you may appear smaller but actually weigh more. You are actually exactly my size, and I have been a size 0 with less than 10% body weight (competitive swimmer - though really, for a girl this is unhealthy) and a size 7 with some definite jiggle (23% body fat) while maintaining the same weight. With that sizing, your BMI would be 20.7. You can calculate this at http://www.nhlbisupport.com/bmi/. BMI Categories: * Underweight = <18.5 * Normal weight = 18.5-24.9 * Overweight = 25-29.9 * Obesity = BMI of 30 or greater As you can see from the categories, you are completely within the normal and healthy range. I personally have never been a fan of BMI as it doesn't take into account a persons body fat to muscle percentage. You can have this caculated with calipers, via a water displacement test (the most accurate) or with a handheld BMI calulator. These use electrical pulses to guestimate your percentages. They are easily thrown off by the amount of air or water trapped in your system however. The short answer is this: don't worry about the number on the scale, worry about how you feel, how you look (as in how well your muscles are defined and the measurements of your body), and if you choose, your percentages. Just remember we are more than what number we see on the scale.