Sparkpeople does not allow for goals less than 1200 calories. The minimum safety range here is for 1200-1550 per day. There are no ranges lower than that. It is very difficult to adequately fuel your body with the nutrition it needs for less than 1200 calories per day. www.sparkpeople.com/resource/nutrition_art
What is your goal weight, current weight, target weight loss per week, and goal date?