help menu

Join us on the Community Forums!

  • Community Guidelines

    The Fitbit Community is a gathering place for real people who wish to exchange ideas, solutions, tips, techniques, and insight about the Fitbit products and services they love. By joining our Community, you agree to uphold these guidelines, so please take a moment to look them over.

  • Learn the Basics

    Check out our Frequently Asked Questions page for information on Community features, and tips to make the most of your time here.

  • Join the Community!

    Join an existing conversation, or start a new thread to ask your question. Creating your account is completely free, and takes about a minute.

Not finding your answer on the Community Forums?

Cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Body fat % vs BMI inquiry

ANSWERED
Replies are disabled for this topic. Start a new one or visit our Help Center.

‎03-03-2019 09:20 - last edited on ‎09-04-2019 08:45 by Fitbit Moderator

‎03-03-2019 09:20 - last edited on ‎09-04-2019 08:45 by Fitbit Moderator

Curious as to why my body fat percentage is going up from 33 to 35.5% but yet BMI is going down?

 

 

Moderator edit: updated subject for clarity

Best Answer
Labels:
0 Votes
1 BEST ANSWER

Accepted Solutions

‎03-04-2019 06:27

In response to JohnnyRow

‎03-04-2019 06:27

@Techy It's great to see you in our Fitbit Community! The information that shared my friend @JohnnyRow is totally correct.

 

In addition, I'd like to share this help article, under the subject "How can I get the most accurate reading from my Aria scale?", which provides some tips and explanation about the Aria accuracy.

 

Let @JohnnyRow and me know if you have any doubts! Smiley Happy

JuanJo | Community Moderator

Running with music makes you happy! Share Your Story

View best answer in original post

Best Answer
4 REPLIES 4

‎03-03-2019 10:06

‎03-03-2019 10:06

If this is a short-term effect (a few days), it's probably a temporary water-balance issue.  The body fat % as measured by the Fitbit scale method is very sensitive to body fluids.  Muscles have more water (blood) than fat so being dehydrated gets interpreted as more fat/less muscle.  If this is your case, it should return to making more sense as your fluids return to normal within a few days. With body fat loss, or gain, it often takes the body several days to adjust water retention.

Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.

Best Answer

‎03-03-2019 10:49

In response to JohnnyRow

‎03-03-2019 10:49

So it’s better to weigh yourself the next morning after using the restroom?

 

Also since I’ve been working out more (the best I can since I’m really over weight) I’ve been told to drink lots of water to flush the toxins out of my body. Which is any where between 1 gallon to maybe 2 gallons a day. Some drinks I feel like I’m using the restroom every couple hours maybe more. And others I go before work and usually need to around 4-5 hours in. 

Best Answer
0 Votes

‎03-03-2019 11:21

In response to Techy

‎03-03-2019 11:21

I do think morning after using bathroom is the best time, and keeps it consistent.

Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.

Best Answer

‎03-04-2019 06:27

In response to JohnnyRow

‎03-04-2019 06:27

@Techy It's great to see you in our Fitbit Community! The information that shared my friend @JohnnyRow is totally correct.

 

In addition, I'd like to share this help article, under the subject "How can I get the most accurate reading from my Aria scale?", which provides some tips and explanation about the Aria accuracy.

 

Let @JohnnyRow and me know if you have any doubts! Smiley Happy

JuanJo | Community Moderator

Running with music makes you happy! Share Your Story

Best Answer