Ladies around 250- how many calories?

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Ladies around 250- how many calories do you eat? I'm not sure I if I'm getting enough... I tried raising my calories for 2 weeks and not much happened. I spend 40-50 hours a week tied to a desk. I've set my my activity level to 'sedentary' and track all exercise (use pedometer and HRM), typically eating back at least half of my exercise calories.

Feel free to add me.