These statistics show just how far out your fitness app could be out by!
So, some stats for you to start with ...
These stats are just rough guides for the ease of understanding to show the possible issues.
Let’s use a round 2000 calories as an example
Daily energy needs for maintenance of body weight 2000 calories to be consumed in food
And let’s say there is 2000 calories of food eaten ( or so we think )
And we have exercised and burnt a modest 300 calories ... (according to the machine at the gym)
And let’s say just for arguments sake that MFP is off by 25% in excess - 200 calories
The total calories consumed has been off by 10% in excess-200 calories
And you haven’t burnt as many calories as you had thought by 25% - 75 calories
That’s nearly 500 calories that have been accounted for incorrectly !!
Now I agree that you can only use the tools at hand, and we will never get a 100% accurate system, but there is an extension to this problem that I wanted to ad and discuss.
Then ... food tracking systems such as MFP are allowing and promoting being able to eat back the calories that you have burnt!
So ... You could be already in a surplus of calories ... Then are being told to eat away as you have earnt the right to eat back the calories you have just been busting your ass working off.