Fitbit charge 2 reducing calorie burn after weight loss update

[SunsetRunner]

So today I updated my weightloss to my fitbit app and it seems to have affected my calories burned rates retrospectively for at least the last 6 weeks. All of my previous days shown reduced calories burned figure, why has this happened?

[RicardoFitbit · Accepted solution]

Hello @SunsetRunner welcome to the Community Forums! Sorry for the delay in responding.

I appreciate the details that were shared in your post, it's a pleasure to help you today. Let me share with you that your basal metabolic rate (BMR) is the rate at which you burn calories at rest just to maintain vital body functions like breathing, heartbeat, and brain activity. Your BMR usually accounts for at least half of the calories you burn in a day and is estimated based on the physical data you entered when you set up your account: sex, age, height, and weight.

The calorie burn estimate that Fitbit provides takes into account your BMR, the activity recorded by your tracker, and any activities you log manually. Also, your tracker's calorie count will reset each night at midnight and begin counting immediately thereafter. BMR is the reason your tracker starts the day with calories already burned.

Let me know if you have any additional questions.

[SunsetRunner]

Thanks for the explanation Richardo, I figured my BMR would decrease as I lost weight what I didnt expect was my previous weeks stats to be reduced as I recorded my weight loss.