Have you lost weight eating back your Fitbit calorie adjustments?

I don't have a fitbit but I do have a Garmin which is essentially the same sort of thing, I eat all of my calorie adjustment back. Your best bet is to start eating 50%, you shouldn't ignore it, MFP's calorie allowance doesn't account for intentional exercise and creating too big of a deficit can be a bad thing.

Try eating a fixed amount of 50-100% over 4-6 weeks and then review if your actual weight loss trend is in line with what you're expecting to lose and adjust accordingly.

Mine seems pretty accurate, I'm still figuring out maintainence, but I've been losing very slowly leaving only 600-800 Fitbit calories left a week, so I'm working on eating all of them to keep my current weight

Sorry, OP, I hope you don't mind if I jump in and tag on another question. @chornak05 @katnadreau @cwolfman13 Which Fitbit do you have?

I eat half back of what Fitbit says I've "earned" if I'm still hungry. I've been losing. I have a Blaze.

I downloaded my data today from both Fitbit and MFP and found that Fitbit overestimated by about 70 calories per day on my burn (about 4%). According to my data I should have lost a small amount more weight compared to what I have based on my calorie burn and what I have eaten. I weigh and log everything so believe I am fairly accurate on my calorie count with what I eat at home and only eat out every few weeks.

Yes. For cardio and steps, almost all of it. For lifting or something like that, I ignore or eat a portion. (Blaze, previously a Charge 2).

I worked out my BMR and set that as my calorie goal. I am not doing proper exercise at this point but I figure all the walking around, housework etc. I do every day is creating a deficit of some sort. Once I start exercising the deficit will be much more significant.

So far I have lost 1kg which is quite decent but it's early days.

I have only been doing this for a couple of weeks and it's working well. I feel hungry sometimes but always have enough to eat throughout the day if I am careful. It's much easier to stick to 1500 than 1200 calories a day. On 1200 I felt like my metabolism was slowing down to cope with the lack of calories and it was very frustrating.

And I do not need to guestimate how many calories I am burning by going for a run or doing Zumba for an hour. I will have to wait a few months to see if this is a better (and much more simple) approach to using Fitness Pal.

I don't "eat back" my calories exactly (I average by week and month), but I have found that my loss trend tracks with my net averages well. I actually think I was undercounting when I used the fitbit because I was entering exercise manually rather than syncing and allowing MFP to apply the adjustment - it's been more accurate since I switched to the Apple Watch and let sync do its thing. The only numbers that matter are going to be the ones that you measure over the course of several weeks at least - calorie counting involves a lot of estimates, so it's important not to take any one measurement as gospel and adjust as you go based on your actual results.

ETA: I have lost 47 pounds over 15 months this way. So it does work!