How to adjust MFP so I don't go in red

heybales

segacs wrote: »

yarwell wrote: »

On fitbit.com dashboard the 1/4 hour slices show calorie burn overnight ie effectively BMR - mine is 17 kcal/15 mins aka 1632 kcal/day. MFP thinks 1663 kcal/day.

That's because Sedentary NEAT isn't equivalent to BMR.

BMR (what Fitbit measures) is essentially what you'd burn if you were in a coma.

Sedentary NEAT (what MFP estimates if you set your profile to "sedentary") is BMR plus the small amount of activity that most sedentary people do in their day -- sitting at a desk, answering the phone, walking around the house or to the washroom, etcetera.

Oh, Yarwell knows all that very well.

The fact being commented on is that MFP uses Mifflin BMR, but Fitbit uses undisclosed formula that is sure close.

And Fitbit isn't so much as measuring it - as calculating it based on gender, age, weight, height.

And Fitbit for step-based trackers applies that calorie burn level to ALL non-moving time.
That's why their estimate of daily burn is likely to be underestimated normally. Likely to compensate for the inaccuracy in food logging, usually going one direction.

@yarwell - using a step-based or HR-based Fitbit?
If HR-based - Curious if you notice the awake non-moving time also carries the same BMR calorie burn?

@christinev297 - I use Zip too - it's in your daily graph, per 15 or per 5 min blocks, on the calorie burn section.
Hover over a block during sleep or non-moving time to see what they calculate as BMR.
Your figure / 15 (or 5) x 1440 = BMR used.

That is also used in the math for step based activity, and manual database entries.

yarwell

@heybales I have the Fitbit one accelerometer based, no HR. Fitbit.com calculates the 17 cals/15 mins RMR as you say.

Screenshot of Fitbit web page from browser as I have it set up :-


you can see the calculated values as at this point it wasn't synced up to date

yarwell

segacs wrote: »

yarwell wrote: »

On fitbit.com dashboard the 1/4 hour slices show calorie burn overnight ie effectively BMR - mine is 17 kcal/15 mins aka 1632 kcal/day. MFP thinks 1663 kcal/day.

That's because Sedentary NEAT isn't equivalent to BMR.

BMR (what Fitbit measures) is essentially what you'd burn if you were in a coma.

Sedentary NEAT (what MFP estimates if you set your profile to "sedentary") is BMR plus the small amount of activity that most sedentary people do in their day -- sitting at a desk, answering the phone, walking around the house or to the washroom, etcetera.

for clarity I stated by BMR according to MFP's BMR tool not its estimate for my sedentary TDEE.

FWIW I have to do about 3000 steps or so before Fitbit adds any calories onto MFP.