Exercise calories - overstated?

Has anyone noticed from personal experience if the exercise calories burned are overstated? Just curious if someone stayed right around their daily net calories, including exercises, and still lost the weight he/she was projected to lose. Obviously I know the weight loss won't be exact, but just wanted to make sure I wasn't eating too many calories thinking I was 'breaking even' for the day. Thanks for any responses.

Replies

  • JesterMFP
    JesterMFP Posts: 3,596 Member
    You mean the ones calculated by MFP's database? Well, before I got a heart rate monitor, I used the database and ate back all my exercise calories. It worked for me and I lost weight as expected. That was for maybe 3 months. Perhaps I was just lucky though as I've heard lots of people say that the database can be very inaccurate. When I got a heart rate monitor, it gave me a slightly higher burn for my walking, and a slightly lower burn for cycling, and I guess the overestimation and underestimation cancelled each other out. The best way to know for sure is to eat them (or don't, or eat half) for a few weeks and see if you lose what you expect to lose. If not, adjust as necessary.
  • Nomi923
    Nomi923 Posts: 43 Member
    In my experience the MFP database gives a higher calorie burn then does my treadmill or cycle. So all I do is take the number stated on the machine. But it doesn't state it too high just maybe 40 50 cals or so from my hour of calorie burning.
  • mfpcopine
    mfpcopine Posts: 3,093 Member
    Yes, exercise burned calories are usually overstated, which is why I ignore them.

    If you are scrupulous about recording your calorie intake and get in as much exercise or activity as you can each week, the food calories are all you really need.
  • AZKristi
    AZKristi Posts: 1,801 Member
    MFP over-estimates exercise calories by about 50% compared to my heart rate monitor and I work out hard. I don't know how I could possibly ever burn what MFP calculates.
  • ktmmom189
    ktmmom189 Posts: 132 Member
    For walking I use a pedometer to calorie conversion chart off of google. It's always lower than MFP so I use that. For the elliptical I use my elliptical. For other items I google do an average and go with the lowest. It's been working.
  • The problem is that how many calories you burn depends on all sorts of things including your metabolism, how fit you are and for walking and cycling how far you go and how high you climb. A heart rate monitor SHOULD be more accurate and I find that for the exercise I do (90% cycling) normally MFPs estimate is lower than what I'm actually doing but by how much depends on the speed (there is a hell of a difference between 12mph and 14mph average speed on a bike), the way I'm riding, what gears I'm using, etc, etc.

    Arnengaggle is right the best thing to do is to give it a try and work it out for yourself, also you don't have to eat back everything that you burn off instead go by how you're feeling.
  • I use the calories burned on my Hrm. That seems to be the most accurate for me.
  • CyberEd312
    CyberEd312 Posts: 3,536 Member
    That is the man reason I put more faith in my Polar FT60 heart rate monitor over MFP's estimator or the Cardio machines at the YMCA. I eat back 85% of my exercise calories leaving 15% for error and have lost a few pounds using this system... Best of Luck...
  • TheRealParisLove
    TheRealParisLove Posts: 1,907 Member
    It depends. When exercising at a typical "cardio" pace, say 60% of maximum heart rate, then yes, MFP overstates the calories burned. When doing something like intervals or exercising at 90% of maximum heart rate for endurance training, MFP is way under in calories burned.

    Also, it calculates strength training at a very low rate, but the overall increase in calories burned after strength training lasts for the next 24 hours after a heavy lifting session and can boost metabolism over the long term with regular weight training sessions.
  • lisapr123
    lisapr123 Posts: 863 Member
    MFP are estimates. I think it depends a lot on how fit you are already, and varies by activity. Many of my bike rides exceed 3-4 hours at 17-20 MPH. It'll say I burned ~2500 calories. Nope. I've been seriously cycling for 7 years and my heart rate barely jumps when I do it. For 3 hrs my HRM says around 1200 calories.

    On the flip side running is very hard for me....the effort to run 3 miles is probably more than the effort of cycling 30 for me. The burns for a 3 mile run match that of my HRM.
  • Sarah47201
    Sarah47201 Posts: 18 Member
    I got a heart rate monitor and for example today my HRM says 914 calories were burned during my workout but MFP says 901. Typically they're within 100 of each other so I don't worry about it.
  • wjniii
    wjniii Posts: 110 Member
    I think some are inflated, others not but they pretty much even out. I followed the database calories and lost weight. I did not, however, make a habit of eating back all my excercise calories. I would go over my non-exercise day calorie total when I did exercise but rarely, if ever, ate back all my exercise calories. I think I get too many calories for gardening and cycling but far to few for the very energetic and aerobic yoga I practice. If you just have one form of exercise you might want to get more exact but if, like me, you do several, I think they come out about right.
  • Arnengaggle
    Arnengaggle Posts: 5 Member
    I usually stay under no matter my exercising. Usually aim for a couple hundred calories under. When I use our elliptical, I use the calories burned right from that. But wasn't sure on walking, jogging, etc... Thanks for quick responses. I've lost about 5lbs and have about 25-30 more I'd like to use. Have just started working out this past week to go along with my new diet. 1380cal is my daily goal.
  • AlessisMore
    AlessisMore Posts: 179 Member
    When compared to my HRM, MFP awards me way more calories for cycling and running (like 30% more) but about the same for walking and activities in the lower ranges of HR. So although the MFP calories appear on my food diary, I almost never eat all of them--just mentally figure on eating back the number that my HRM gives me.
  • carrietehbear
    carrietehbear Posts: 384 Member
    I have found that MFP estimates are only slightly higher than my HRM on most things. There are also somethings my HRM gives a higher number than MFP. The worst estimate I found is on actual machines. They are always WAY lower than my HRM and MFP but it also isn't taking in account age/weight/heart rate...
  • Martina_Who
    Martina_Who Posts: 172 Member
    Tha MFP database for exercise calories is wayyyy wayyyyy off and I would never advice someone to use it.
    I love love this site but this aprt of the site simply does not work.
    The calorie burn is always too high.
    Google loads of different calorie calculators and you should find a good average!
    Or invest in a HRM!
  • ravengirl1611
    ravengirl1611 Posts: 285 Member
    I would imagine that MFP is using a fairly broad average for cals burned - and I take that into consideration for my numbers. Im sure that on some things they've underestimated the burn (walking for example) and over estimated on some - no one is exactly alike so it would be awfully hard to give exact numbers. As for eating back cals - unless Im hungry I dont.
  • KrazyAsianNic
    KrazyAsianNic Posts: 1,227 Member
    I did notice in terms of the database that they are really off. The elliptical would say 300 something and MFP would say like 1000. I found an app which is about the same calories as the machine or less, so i switched to recording that number
  • Skeebee
    Skeebee Posts: 740 Member
    Depends....because, MFP learns from your entries, actually. At first, the MFP values are overestimated. However, for the past year, I have put in manual entries from my HRM and later, when I started to put in my minutes, MFP was coming back with precalculated valued based on my previous entries that were spot on. I always suggest an HRM as everyone's body types are different that there is no way MFP's precalculations can possible be right for each and every body type.
  • dlpoisson
    dlpoisson Posts: 19 Member
    I wear a Bodymedia armband to measure my calorie burn, and even with high intensity workouts, I'm lucky if it measures 200 calories in a 1/2 hour period. MFP usually wants to give me much more than that. But with my armband, I learned I burn 2100-2200 cal per day. So, I just make it easy on myself, eat an average of 2000 calories, mostly clean foods and since I measure low calorie burns, I don't make it a point of eating the exercise calories back. That helps with my deficit. Works for me!
  • Graelwyn75
    Graelwyn75 Posts: 4,404 Member
    I think it varies from person to person. For me, the cycling on mfp just about matches my hrm, but I burn a lot more on the elliptical than mfp says. I use a fitbit for my walking anyway and my hrm for workouts, so never need to go on the mfp estimates. I eat back some, sometimes all, of my exercise calories and maintain which is what I wish to do. Today, my TDEE hit just over 3000 with cycling and walking.

    I see no point in depriving your body of the extra nutrients if you can continue to maintain or lose weight while eating what you have burnt of the minimum intake you are meant to be having.
  • squirmmonster
    squirmmonster Posts: 98 Member
    I think whether or not the MFP calories are overestimated depends not on the website, but the person in question. You have to know yourself a bit. You have to think about how your workout went, and say, did I really put a lot of effort in today? Or was it a lower intensity? You have to be honest with yourself, so that you can be honest with MFP, so it can give you an accurate thing. Just because the video says "high intensity" on the cover, doesn't mean that's what you put in. I guess if you can't gauge your own effort well, a heart rate monitor is good. Personally, though, I know when my heartrate is pounding, and when it's just sorta up a little.
  • DeathKitty23
    DeathKitty23 Posts: 64 Member
    I don' agree with eating back exercise calories so I don;t log my exercis I only put it in the notes section - that way it makes no difference
  • I find cycling calories are grossly overstated. An hour ride at 18 mph indicates circa 1000 calories but I am pretty sure it is half of that. Less of a problem with running. I am guessing it is because in cycling there is a lot of coasting and downhills where very little effort is expended but calorie counter algorithm figured you are flying along at great effort. My HRM confirm this - circa 40pc overstated at least.
  • tootoop224
    tootoop224 Posts: 281 Member
    Depends....because, MFP learns from your entries, actually. At first, the MFP values are overestimated. However, for the past year, I have put in manual entries from my HRM and later, when I started to put in my minutes, MFP was coming back with precalculated valued based on my previous entries that were spot on. I always suggest an HRM as everyone's body types are different that there is no way MFP's precalculations can possible be right for each and every body type.
    This is interesting. I noticed this also, When I first put in the exercise type and time, it came back with a number of calories burned. I am assuming it used some algorithm based on my stats. Not sure exactly what stats, age, weight, others? When I overrode it, that became my new number, every time I enter the same exercise. If I increase the time by 50%, the calories burned goes up by 50%. My question is, does my entry now become the standard for all other people with the same stats as me, or is it just my number?
  • tootoop224
    tootoop224 Posts: 281 Member
    OP, I think you can tell from the replies, the MFP database is wildly erratic. It overstates some activities, understates others and probably gets some about right on. The good thing is, once you get comfortable with estimating your calories burned and input it, it seems to stay that way for you every time you input that exercise. So take all the good advice you've been given here, come up with your number and use that. Good luck.
  • SLLRunner
    SLLRunner Posts: 12,942 Member
    I was using the Runastic pedometer and noticed it does not record the actual pace I was walking or running and calories seemed kind of high. I got the Footsteps pedometer, which is more accurate with pace, and the calories show less than what's on the treadmills at the gym. I think the calories on the gym machine are very inaccurate.

    I check my numbers on my Footsteps Pedometer with other databases where my sex, height, and weight are entered, for accuracy.

    It's not an exact science so there is no way I'm eating all my exercise calories back. I would rather leave a margin in case of error.