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Conference rocks::weight_control

Title: Weight Loss and Maintenance
Notice:**PLEASE** enter notes in mixed case (CAPS ARE SHOUTING)!
Moderator:ASICS::LESLIE
Created:Tue Jul 10 1990
Last Modified:Tue Jun 03 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:933
Total number of notes:9931

819.0. "Calorie Consumption to Lose Weight?" by WR1FOR::MEYERS_NA () Sat Jul 31 1993 02:58

    I'm a little confused anymore on *how* much calories a person
    should consume a day when trying to lose weight.  Some books say 
    1000-1300 and other books say that if you eat less than 2000 calories 
    a day that your metabolism slows down.  I don't know what to really 
    believe any more.  I also watch my fat intake and eat well so basically
    my question is "how much to eat" vs. "what to eat".
    
    I want to lose about 10 - 15 pounds.  Exercise is not a problem -
    I exercise for about 2 hours every day (aerobics plus toning)
    and that is not enough.  Yes, I am getting firmer but it's not
    taking off the excess weight.  I have been working out since March.
         
    
    
    Thanks in advance!
    
    
    Nancy
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819.1HDLITE::ZARLENGAMichael Zarlenga, MRO AXP BPDASun Aug 01 1993 06:2915
    There is a point where the body thinks you are starving it.
    
    It will slow your metabolism down ... WAY down, to save your life.
    
    You have two choices :
    	1. increase caloric intake
    	2. increase exercise you get throughout the day
    
    Either will help increase metabolism (I prefer 2, unless you're on a
    strict diet, in that case, exercise at your own risk).
    
    The point at which the body goes into this "I'm starving" mode varies
    from person to person.  For people who diet all their lives, it can be
    quite low.  But, even in those people, regular low-intensity, long-
    duration exercise can fix that.             
819.2CNTROL::JENNISONJohn 3:16 - Your life depends on it!Mon Aug 02 1993 18:1231
	Here's a formula to determine your Basic Metabolic Rate as
	a function of weight.  This will determine your caloric needs to
	maintaint your current weight.

	Weight in pounds x .45	= Weight in Kilograms

	Weight in Kilograms x 24 = BMR

	If you are:

	Highly Active (Read, Athlete)	BMR X .50	= ______

	Moderately Active		BMR X .40	= ______

	Lightly Active			BMR X .30	= ______


	Add the result in the right column to your BMR, and that roughly
	tells you how many daily calories you need to consume to maintain.

	Cut that number by 500 calories a day, and you would lose roughly
	a pound a week.

	Remember that this formula already takes into account your activity
	level.

	I teach aerobics, and work out an average of 4 times a week, and consider
	myself moderately active.

	Karen
819.3ask a simple question, get a complicated answerGOLLY::CARROLLthe stillness shall be the dancingMon Aug 02 1993 19:1642
    Note -1 doesn't make sense to me.
    
    I get:
    
    	150 lb (my weight in lb) * .45 = 67.5 Kilos
    	67.5 K * 24 = 1620 = my BMR
    	Moderately active: 1620 * .4 = 648
    
    According this this, I should be eating 648 cal/day, which is ridiculous.
    
    The "rule of thumb" for calories needed my nutritionist taught me is
    that for moderately active young adults, it is 15 calories/pound/day,
    which for me is 15 calories * 150 lb = 2250 cal/day.
    
    The more accurate measure of calories needed comes from finding your %
    fat, and calculating from that how many lb of fat and how many lb of
    muscle you have...because muscles burns more calories than fat.  So a
    fit person of the same weight needs more calories than an unfit person.
    
    I am a moderately active 25 year old woman, 150 lb (give or take 5 lb)
    with 16% body fat (caliper method) and I maintain my weight on about
    1900 calories a day (with occasional dinners out, etc)
    
    Anyway, none of this answer the basenoter's question.  I don't think
    there is an exact answer available.
    
    Most "sane" diets (as opposed to crash diets) have 1200-1500 calories a
    day, depending on your height and weight.
    
    Another "rule of thumb" (which translates to 'pretty inaccurate but a
    reasonable guess') is that 1 lb loss = 3500 calories less than your
    body needs.
    
    So if your body needs 1850 calories/day and you eat 1500, then you will
    lose a lb every 10 days.  It's not true, however, that eating 900
    calories will triple the speed at which you lose weight.
    
    So - if you are 5'6 and weight 170 lb (numbers off the cuff) I'd try
    eating about 1400 cal/day and see how it goes.  That would probably
    provide a safe, slow weight loss.
    
    D!
819.4Add the numbersALFA2::PEASLEEMon Aug 02 1993 21:214
    Re: .3 You missed the last step, you need to add the BMR to 
    the activity so you would have:
    
       1620+648=2268 calories per day.
819.5CNTROL::JENNISONJohn 3:16 - Your life depends on it!Tue Aug 03 1993 18:135
	.4 is correct

Karen