I don't believe it will. When you set your account up with SparkPeople, you set your weight loss goals, provided your age, weight, how active you were and how much you wanted to lose. Your fitness and nutrition plans are set around your goals, not your BMI. Here is a more detailed article helping to explain this: www.sparkpeople.com/resource/calorie_calcu
"We either make ourselves happy or miserable. The amount of work is the same." Carlos Castaneda
Live Kind. Laugh Often. Love Always.