Fat doesn't lower with exercise

Gothrenapp
Gothrenapp Posts: 2 Member
in Fitness and Exercise
For some reason, when I log an exercise these last few days my fat is the same from before I logged my exercise. Now I know it does it because I've seen it go down before. Does anyone know why this is?

Replies

  • sgt1372
    sgt1372 Posts: 3,997 Member
    edited August 2019
    1) Nothing can accurately measure the chg in BF day to day.

    2) Bioelectric devices that you use at home and at the gym are notoriously inaccurate l.

    The best methods of BF measurements are DEXA and hydro but tou wouldn't normally do either more often than quarterly.
  • sijomial
    sijomial Posts: 19,809 Member
    Far too short a timescale to monitor something that changes slowly.

    Assuming you are using bathroom scales or a standalone device that measure your electrical resistance the rapid fluctuations you may see day to day are water related, not fat.
  • AnnPT77
    AnnPT77 Posts: 34,213 Member
    sijomial wrote: »
    Far too short a timescale to monitor something that changes slowly.

    Assuming you are using bathroom scales or a standalone device that measure your electrical resistance the rapid fluctuations you may see day to day are water related, not fat.

    Bolded is true even when the scale says the fluctuations are fat, just to put a finer point on it. Scale is that inaccurate at determining body composition.

    You know you're losing fat when your weight trends downward over a multi-week period or longer. There's no good way to know day to day, other than figuring out what intake/activity levels result in that long-term downward trend, then trusting that if continue that intake/activity, the trend will also continue (until you get so much lighter that you have to adjust intake, which will be a decent amount of time in the future, if you're losing at a sensibly moderate rate.
  • Gothrenapp
    Gothrenapp Posts: 2 Member
    No I just meant on here lol. The fat grams I log.
  • kimny72
    kimny72 Posts: 16,011 Member
    Gothrenapp wrote: »
    No I just meant on here lol. The fat grams I log.

    Your fat goal shouldn't go down when you log exercise, it would go up. You get credited with extra calories, and those calories would be divvied out to the 3 macros based on the percentages you're set up with.

    Is the exercise coming over from an activity tracker, or are you manually logging it here on MFP?
  • AnnPT77
    AnnPT77 Posts: 34,213 Member
    Gothrenapp wrote: »
    No I just meant on here lol. The fat grams I log.

    Do you mean the percent of fat in your day usually goes down when you log exercise, or the number of grams goes down, or something else entirely? And what part of the app are you looking at when you observe this?

    I'm not sure what you mean at all.
  • LyndaBSS
    LyndaBSS Posts: 6,964 Member
    This is really confusing.

    Maybe summarize what you're actually looking for in one sentence.
  • cmriverside
    cmriverside Posts: 34,416 Member
    :huh:

    Confusing post. Please clarify, @Gothrenapp
  • cakey_kirsty
    cakey_kirsty Posts: 24 Member
    As far as I'm aware logging exercise doesn't change the grams of fat you've already eaten.
    :| confused
  • Pamela_Sue
    Pamela_Sue Posts: 563 Member
    I think what the OP is saying is that, when we add in exercise, our food diary is supposed to adjust our calories and our macros upward. But his fat macros are not adjusting. (that is my take on his post).
  • concordancia
    concordancia Posts: 5,320 Member
    pjshawley wrote: »
    I think what the OP is saying is that, when we add in exercise, our food diary is supposed to adjust our calories and our macros upward. But his fat macros are not adjusting. (that is my take on his post).

    But they would go up, not down.
  • Pamela_Sue
    Pamela_Sue Posts: 563 Member
    concordancia wrote: »
    pjshawley wrote: »
    I think what the OP is saying is that, when we add in exercise, our food diary is supposed to adjust our calories and our macros upward. But his fat macros are not adjusting. (that is my take on his post).

    But they would go up, not down.

    Yes, I do agree that appears to be what OP is saying. Confusing. Perhaps they will come back and clarify?
  • AnnPT77
    AnnPT77 Posts: 34,213 Member
    concordancia wrote: »
    pjshawley wrote: »
    I think what the OP is saying is that, when we add in exercise, our food diary is supposed to adjust our calories and our macros upward. But his fat macros are not adjusting. (that is my take on his post).

    But they would go up, not down.

    With exercise:

    Absolute fat goal amount in grams would go up.
    Percent of fat gram goal eaten so far would go down.
    Fat macro percent of total calories eaten so far wouldn't change.
    Fat macro eaten so far percent of total calorie goal would go down.
    Etc.

    Various totals and percents appear on different pages of the web app, and still different ones in the phone app, and for all I know the available numbers differ between Android and iOS versions or between free MFP and premium. I don't know which of the above may appear somewhere.

    Could be talking about anything. ;)

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