We have often come across terms like BMI and BMR to calculate ideal weight from fitness gurus. But what do these terms really mean? How do they affect our weight loss goals in any way? Here s what you need to know about these two fitness terms. When we speak of BMI we are referring to your Body Mass Index. It is a scale that helps indicate body fat composition. BMR on the other hand is Basal Metabolic Rate which is a measure of the amount of energy that our body needs to take care of important functions that are