fitbit flex and neg calories

Did you just get a Fitbit? My adjustments were wonky at first. They got better & better, as if the system was "learning" my routine.

MFP has a Fitbit Users group: http://community.myfitnesspal.com/en/group/1290-fitbit-users

It'll take trial & error to find what works for you. Here's what worked for me:

Do not log any step-based activity. Your Fitbit is already tracking that for you.

Log non-step exercise (like biking or swimming) in Fitbit—never MFP.

Log food & drink (including water) in MFP.

Enable negative calorie adjustments: http://www.myfitnesspal.com/account/diary_settings

Set your activity level to sedentary: http://www.myfitnesspal.com/account/change_goals_guided & set your goal to .5 lb. per week for each 25 lbs. you need to lose.

Follow your MFP goal, eating back your Fitbit adjustments. Your Fitbit burn is your TDEE (total daily energy expenditure). If you eat less than your Fitbit burn, you will lose weight.