Very high TDEE - help!

Hi All,

I'm hoping someone can help me out with this one - I've been on MFP for about 6 weeks now and losing weight slowly, eating between 1500-1700 cals/day (which was well below what was recommended). I've been reading a lot of posts about TDEE-20% so I put my numbers into the IIFYM Calculator - I'm 24, 6'3" and 310lbs.

I received two different results
1. Mifflin-St Jeor: TDEE=3425, After I take 20% = 2740
2. Harris-Benedict: TDEE=3824, After I take 20% = 3074

My problem is, these seems like really high numbers and I'm definitely going to struggle eating that much without resorting to greasy fast food every day.

Can anyone offer any assistance?

Thanks

Replies

  • mockchoc
    mockchoc Posts: 6,573 Member
    No problem, I'll eat them for you :bigsmile:
  • SteelySunshine
    SteelySunshine Posts: 1,092 Member
    I feel your pain. I just recently started exercising and it's really pushed up how many calories I am supposed to eat. I am not worried for now, but I can see it could become an issue if I start losing too fast, like 4 lbs a week would freak me out, too much too soon sort of thing. My plan if that day comes is to eat avocados and nuts and lots of peanut butter. Healthy fats another words and possibly more protein rich foods.
  • herblackwings39
    herblackwings39 Posts: 3,930 Member
    Add nuts, healthy oils, nut butters, avocado, hemp hearts, chia seeds.
  • michellekicks
    michellekicks Posts: 3,624 Member
    Yep. My husband is 6'2" and around 285 right now. He loses well when he eats about 2600 calories daily. As a 37 year old 5'7" woman I lost weight eating 2100 calories/day. Here's what I recommend:

    Eat full fat foods
    Eat real sugar and not artificial sweeteners
    Eat meat for protein - beef is particularly high in calories
    Eat nuts and nut butter
    Enjoy fruits and cheeses
    Eat healthy fats and oils
    Enjoy junk food as long as it fits your macro targets

    Oh an on the topic of macros, I recommend aiming for 260g protein and not worrying about carbs and fats... but you'll get all kinds of other suggestions.
  • DavPul
    DavPul Posts: 61,406 Member
    I'm not seeing how MFP is giving you 1500 to eat. A year ago when I started here I was 276 pounds, and at the highest deficit I was giving around 2100 calories to eat. To get 1500 I'm pretty sure I would have had to mad a mistake and had it do the calculations for a female. As a 310 pound male you should be eating around 2300-2400 or so.

    The higher numbers you're seeing are closer to what's right. The highest number, the one that's like 3000 calories, is using a method where you eat the same amount as you will eat at your goal weight. You lose weight slower, but the advantage is your metabolism won't slow down and you won't have to adjust to maintenance eating once you reach your goal weight. It's not my personal choice but it does work.

    I'm pretty sure a big guy like yourself can figure out how to eat 2000-2500 calories in an entire day. Hell, I ate that much for lunch on Saturday.
  • carolemorden9
    carolemorden9 Posts: 284 Member
    My husband is 6'7", started out at 269 lbs, and was given 2880 by MFP to lose 1 pound a week. He also is a night stock person at Walmart, so is lifting a lot at work, so he put down that his daily activity is higher. Today he ate over 3000 calories because he burned over an additional 1000 calories doing Just Dance 4 and walking. He's losing weight every week. So far in 5 weeks he's lost around 14 or so pounds.
  • Kitteeee
    Kitteeee Posts: 66 Member
    BUMP!, I would like to know as well!, I am aiming between 1300-1600 cals a day, and I am losing fine, but when I increased my cals to around 1800, I stopped losing weight during those 2 weeks (I'm 6' tall and obese), my TDEE was something close to yours somewhere around 3128, so minus the 20%=2502.4, umm, IDK, maybe it's cause of my hypothyroidism?, I am taking the proper meds..is it possible I just have a really slow metabolism?, as when I started counting my cals before I decided to start losing weight, 2500 cals was about the max amount I was already eating in a day...it's not the fact that I couldnt manage to eat that much, but the fact that I wouldn't lose the weight at the number...or maybe the TDEE -20% formula doesn't work for tall and big people? lol!, sorry if I sound ignorant :S
  • t2kburl
    t2kburl Posts: 123 Member
    Starting from 310 lbs, you can go with TDEE - 30%
    Just eat above BMR, at least, and work out as hard as you can

    I was in the same boat about a year ago

    I ate too little for too long and plateaued for a long time.
  • michellekicks
    michellekicks Posts: 3,624 Member
    BUMP!, I would like to know as well!, I am aiming between 1300-1600 cals a day, and I am losing fine, but when I increased my cals to around 1800, I stopped losing weight during those 2 weeks (I'm 6' tall and obese), my TDEE was something close to yours somewhere around 3128, so minus the 20%=2502.4, umm, IDK, maybe it's cause of my hypothyroidism?, I am taking the proper meds..is it possible I just have a really slow metabolism?, as when I started counting my cals before I decided to start losing weight, 2500 cals was about the max amount I was already eating in a day...it's not the fact that I couldnt manage to eat that much, but the fact that I wouldn't lose the weight at the number...or maybe the TDEE -20% formula doesn't work for tall and big people? lol!, sorry if I sound ignorant :S

    What was your BMR? I found eating BMR+100+Exercise calories worked well for me. All my caloric deficit came from my non-exercise activity in a day.

    You should be able to lose weight eating at the higher numbers... Here's a blog I wrote that might make this easier to understand: http://www.myfitnesspal.com/blog/mrsbigmack/view/finding-the-sweet-spot-452184
  • ryanarrowsmith
    ryanarrowsmith Posts: 10 Member
    Thanks for your help everyone, even though it's daunting to think about increasing my calorie intake by so much, I'm going to give it a try :)

    Thanks for all the links and food suggestions - I'll give it a go at around 2500 cals/day over the next couple of weeks (and add some more exercise) and let you know how I'm going.
  • DavPul
    DavPul Posts: 61,406 Member
    you realize that if you add more exercise you have to add even more calories, right?
  • Kitteeee
    Kitteeee Posts: 66 Member
    BUMP!, I would like to know as well!, I am aiming between 1300-1600 cals a day, and I am losing fine, but when I increased my cals to around 1800, I stopped losing weight during those 2 weeks (I'm 6' tall and obese), my TDEE was something close to yours somewhere around 3128, so minus the 20%=2502.4, umm, IDK, maybe it's cause of my hypothyroidism?, I am taking the proper meds..is it possible I just have a really slow metabolism?, as when I started counting my cals before I decided to start losing weight, 2500 cals was about the max amount I was already eating in a day...it's not the fact that I couldnt manage to eat that much, but the fact that I wouldn't lose the weight at the number...or maybe the TDEE -20% formula doesn't work for tall and big people? lol!, sorry if I sound ignorant :S

    What was your BMR? I found eating BMR+100+Exercise calories worked well for me. All my caloric deficit came from my non-exercise activity in a day.

    You should be able to lose weight eating at the higher numbers... Here's a blog I wrote that might make this easier to understand: http://www.myfitnesspal.com/blog/mrsbigmack/view/finding-the-sweet-spot-452184

    Thank you for helping! :), my BMR right now is 2388, Im going to check out your blog right now :)
  • ryanarrowsmith
    ryanarrowsmith Posts: 10 Member
    you realize that if you add more exercise you have to add even more calories, right?

    In that case, I'll stick to what I'm currently doing - about 3-4 hours a week.

    I used this calculator
    http://scoobysworkshop.com/calorie-calculator/#projectedweightloss

    And it recommended about 2700 calories - I'll give that go
  • mockchoc
    mockchoc Posts: 6,573 Member
    you realize that if you add more exercise you have to add even more calories, right?

    Yes if you exercise more than you are now you're going to have to eat even more. You sure you want to do that right now?
  • ninerbuff
    ninerbuff Posts: 49,024 Member
    Hi All,

    I'm hoping someone can help me out with this one - I've been on MFP for about 6 weeks now and losing weight slowly, eating between 1500-1700 cals/day (which was well below what was recommended). I've been reading a lot of posts about TDEE-20% so I put my numbers into the IIFYM Calculator - I'm 24, 6'3" and 310lbs.

    I received two different results
    1. Mifflin-St Jeor: TDEE=3425, After I take 20% = 2740
    2. Harris-Benedict: TDEE=3824, After I take 20% = 3074

    My problem is, these seems like really high numbers and I'm definitely going to struggle eating that much without resorting to greasy fast food every day.

    Can anyone offer any assistance?

    Thanks
    Use the Mifflin-St. Jeor and take in 2425 a day to lose 2lbs a week. You don't HAVE to eat greasy fast food to reach your goal, but higher fat foods (like nuts and avocados) can easily get you there. Peanut butter too.

    A.C.E. Certified Personal/Group FitnessTrainer
    IDEA Fitness member
    Kickboxing Certified Instructor
    Been in fitness for 30 years and have studied kinesiology and nutrition
  • ryanarrowsmith
    ryanarrowsmith Posts: 10 Member
    you realize that if you add more exercise you have to add even more calories, right?

    Yes if you exercise more than you are now you're going to have to eat even more. You sure you want to do that right now?

    Well, I've decided not to. I just feel so much better after exercising - particularly if I've eaten a lot of protein for the day and have that full feeling!
  • Joehenny
    Joehenny Posts: 1,222 Member
    1500 would be extremely low at 310 bro at the minimum you should be eating 200 and you're the same height as me so that's even a higher rate than the avg mfp.
  • ryanarrowsmith
    ryanarrowsmith Posts: 10 Member
    Use the Mifflin-St. Jeor and take in 2425 a day to lose 2lbs a week. You don't HAVE to eat greasy fast food to reach your goal, but higher fat foods (like nuts and avocados) can easily get you there. Peanut butter too.

    A.C.E. Certified Personal/Group FitnessTrainer
    IDEA Fitness member
    Kickboxing Certified Instructor
    Been in fitness for 30 years and have studied kinesiology and nutrition

    Thanks man, that sounds good.
  • togmo
    togmo Posts: 257
    you realize that if you add more exercise you have to add even more calories, right?

    In that case, I'll stick to what I'm currently doing - about 3-4 hours a week.

    I used this calculator
    http://scoobysworkshop.com/calorie-calculator/#projectedweightloss

    And it recommended about 2700 calories - I'll give that go

    If you are using the calculator correctly on scoobys and are inputting roughly your correct level of exercise and putting in step 6 your goal (say -20%) then the TDEE that comes out at the bottom based on your goal in step 6 does take into account both your activity levels and your weight loss. Theoretically if you eat the amount of calories it tells you according to step 6 at the bottom of that table you should lose fat at roughly the amount it tells you in the right hand column - DO NOT take an extra 20% off this figure, this figure has already reduced your maintenance calories by your goal (say 20%) based on your activity level and personal information.

    It doesn't really matter which method you use (they are all estimates) but the Mifflin-St. Jeor one tends to suggest a lower TDEE than the Harris-Benedict one from what I can gather (according to that method my TDEE is about 150kcal lower than the Harris-Benedict method) so if you were to use this one you will lose more weight being that it suggests you eat less.

    Of course as you lose weight you do need to readjust your TDEE, I have been told it is best to do this every 5-10lbs depending on how heavy you are.
  • squall88c
    squall88c Posts: 69 Member
    here's another calculator that will help confuse you. :-)

    http://www.marklauren.com/custom-calorie-calculator.html

    It's constantly 80 to 100+ calories less than what scooby recommends.

    I currently use this calculator & get good results.
  • metacognition
    metacognition Posts: 626 Member
    If you feel fine eating less, then do it. A formula can't possible take into account every variable in every single person. Some people have slower metabolisms than others.

    P.S. Scooby's calculator has me eat 1940 calories to maintain weight. That would make me gain slowly. I cut at about 20% under that number for a mild 1/2 lb loss every week or two.