Do I really need to eat my exercise calories?

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Really?

I eat my 1200/day. I go to the gym 4X/wk. According to my HRM it adds sometimes up to 700 calories to my day. I'm losing pretty steady at 2 pounds per week.

What is the actual science behind it? 700 calories is a BigMac (roughly). So according to that theory I could eat 4 BigMac's per week and still lose 2 pounds.

I don't get it.

Replies

  • WarmDontBurn
    WarmDontBurn Posts: 1,253 Member
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    Here is a great link: http://www.myfitnesspal.com/topics/show/6556-the-answers-to-the-questions

    You never want to go below 1200 NET. Your body needs fuel to function and if you eat 1200 and exercise 700 away you are only taking in 500 calories and that is NOT enough to functionon for very long. MFP adds a deficit in so if you only ate 1200 cals a day and never exercised you would still lose weight.
  • hollycurran
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    I don't get it either and I really hope someone can explain!!
  • hpsnickers1
    hpsnickers1 Posts: 2,783 Member
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    please read through "Links in MFP You Want to Read Again And Again." in my signature.
  • hpsnickers1
    hpsnickers1 Posts: 2,783 Member
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    I don't get it either and I really hope someone can explain!!

    http://www.hussmanfitness.org/html/TPAdaptation.html

    Working With Your Body - The Basic Strategy
    By John P. Hussman, Ph.D.
    All rights reserved and actively enforced.


    The goal of this site is to help you to transform your physique by walking you step-by-step through everything you need to know about exercise physiology and nutrition. I know that a lot of you have “tried everything,” and because there are so many approaches that have failed you, there's a real risk that you'll quit again and again if you don't see results immediately, or if you don't fully understand why your fitness program should work. Worse, there may be some missing pieces in your program, which could lead to slow progress even though you're hard at work. My hope is that this information will help you to stay on track - to turn effort into results - and to reach your goal.

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    The law of unintended consequences

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    Setting the right goal

    John Dewey once said that a problem well-stated is half-solved. If you want to reach your goal, you have to define it correctly. See, a lot of people say “I want to lose weight.” Well, if losing weight is your goal, go on a no-carb diet. You'll lose a lot of weight – some of it will be fat, a lot of it will be water, and a dangerous amount will be muscle tissue. You'll lose weight quickly, but you'll slow your metabolism and gain fat more quickly once you go off the diet. Trust me on this. I've been there, done that.

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    Right this minute, your body is the way it is because it has adapted to the lifestyle you've thrown at it, in an attempt to survive. Ever seen the directory at the mall with the little red arrow that says “you are here”? Well, fitness is the same way. You are here. You can't start anywhere else. So be kind to yourself. Don't beat yourself up. Don't worry about how much there is to do. Change your self-talk from “My body is my enemy” to “My body is my partner.” Accept where you are right now as the starting point, and start moving.

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  • Beebs33
    Beebs33 Posts: 262
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    Even if you decide to eat back your calories it doesn't mean eat whatever you want. It means eat healthy things to eat back your calories (i.e. almonds and a banana)
  • mertheg01
    mertheg01 Posts: 19
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    the 700 calories from the gym is calories you are burning off(losing). the 1200 per day is calories you are consuming(adding). You need to burn roughly 3500 calories a week to lose 1 lb. So, after you consume your 1200 calories for the day, anything that you burn off is going towards your weight lose.
  • menchi
    menchi Posts: 297 Member
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    Even if you decide to eat back your calories it doesn't mean eat whatever you want. It means eat healthy things to eat back your calories (i.e. almonds and a banana)

    Totally second that. And yes, eat as much of your exercise calories back as you can.
  • Charli666
    Charli666 Posts: 407
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    i think a lot of it depends on weight already, if you are near to your goal weight then your body will go into starvation mode if you net below 1200 because it struggles to find the fat to use, if you weigh alot more like me then your body doesn't struggle to find the fat to use instead, if your worried, check with your doctor, but i often net less than 500, have had it medically checked, and its not a problem.

    As you near your goal weight however, you will need to start eating them back
  • hpsnickers1
    hpsnickers1 Posts: 2,783 Member
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    So if you eat under 1200 (this is a general number) and you do lots of exercise you are setting your body up for health issues.

    Sure you will lose weight but you will lose mostly muscle mass. This doesn't apply as much when you have more weight to lose (plenty of fat reserves to dig into). But as you get closer to healthy weights it will become very, very important to eat your exercise calories (lower fat reserves).

    Keep your NET calories above 1200 though. This number is on you Home Page.
  • BflSaberfan
    BflSaberfan Posts: 1,272
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    I can tell you what worked for me. When I had 50 lbs to lose I ate 1200 calories a day, exercised 3 days a week. I did not eat back my calories from working out. Once I lost about 45lbs my body stopped losing weight (I was then within 15lbs of my goal weight or so) I increased my calories to 1700 and increased my exercising and have since lost 4lbs.
  • TS65
    TS65 Posts: 1,024 Member
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    Read this...

    http://www.myfitnesspal.com/topics/show/10589-for-those-confused-or-questioning-eating-your-exercise-calo

    In a nutshell, yes you should eat all your exercise calories.
  • bikerbiz
    bikerbiz Posts: 179 Member
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    This is a pretty good explanation.
    http://www.myfitnesspal.com/topics/show/10589-for-those-confused-or-questioning-eating-your-exercise-calo

    But, if I was losing a steady 2 lbs/week, I would not change a thing. As you get closer to your goal, things will change, though, and it will be harder to keep that up without watching the exercise calories.
  • hpsnickers1
    hpsnickers1 Posts: 2,783 Member
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    Really?

    I eat my 1200/day. I go to the gym 4X/wk. According to my HRM it adds sometimes up to 700 calories to my day. I'm losing pretty steady at 2 pounds per week.

    What is the actual science behind it? 700 calories is a BigMac (roughly). So according to that theory I could eat 4 BigMac's per week and still lose 2 pounds.

    I don't get it.

    Sure you could but at the expense of your health. What's the point of losing weight if it doesn't make you healthier?
  • JulieBoBoo
    JulieBoBoo Posts: 642
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    OK here's the deal:

    Much as we would like it to be, the weight we lose isn't only fat, it's also muscle. So we need to exercise to build back the muscle we have lost and hopefully build a bit more than we had to keep our bones strong and to boost our metabolism.

    Now this involves extra calories for two reasons. Reason one is that protein helps with muscle gain - that's why those weight lifters are always drinking protein powders and protein bars. So if you're low on protein, you're going to have a harder time making back the muscles you need.

    Reason number two is that the faster your metabolism gets, the more you need to eat because the more your body is burning. If you want to keep it burning hot, you need to make sure it has a constant supply of fuel.

    This doesn't mean you should go and eat a Big Mac -- this is full of sodium, low in protein, high in refined sugars and high in saturated fats. It's BAD fuel. You should however be eating more clean proteins such as hard boiled eggs, unsalted seeds, unsalted nuts, and Greek Yogurt. Don't worry about feeling full, these foods pack a punch and you only need a handful to give you both the protein and the calories your body needs.

    Hope this helps.
  • natskedat
    natskedat Posts: 570 Member
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    Anybody know where the magic number of 1200 calories comes from? I have a difficult time believing that a woman who's 5'6" tall and a 6'3" man both have the same base number of caloric requirements before they start burning muscle.
  • wonnder1
    wonnder1 Posts: 460
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    Thanks all. That actually makes (a little) more sense now.

    (And no, I'm not actually eating BigMacs! 1. They're disgusting. 2. What would be the point of all the work. 3. They're disgusting.)

    Which is funny, cause a month ago I would have said that I loved them. I had a Happy Meal a couple days ago with the kids and it was "eject all systems."
  • glturner2
    glturner2 Posts: 5 Member
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    The 1200 is an average of the minimum number of calories your body needs just to maintain and run itself during the day. It doesn't take into account your daily activity, nor how much you exercise.

    Consuming less than this isn't an issue on a one-off occasion but if you do this everyday then you are potentially storing up issues for the future as your body won't have the energy and supplies it needs to repair itself. Instead it will begin to use your muscles to get the energy from - remember your heart is made of muscle too!
  • WarmDontBurn
    WarmDontBurn Posts: 1,253 Member
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    Anybody know where the magic number of 1200 calories comes from? I have a difficult time believing that a woman who's 5'6" tall and a 6'3" man both have the same base number of caloric requirements before they start burning muscle.

    I believe it is different for men then it is for women. Since I am not male I don't know much about their minimum requirements though.