So let me get this straight

just wondering but how did you come up with this number?? the way I understand it is, you should not make it a habit of staying below the calorie intake suggested on MFP. and to always to eat the extra calories burned by exercise.

At a BMI of 40, it'll be a lot higher than that. The LOWEST recommended NET by MFP is 1200. Just do what the website tells you regarding your net to start off with, as you become more informed you can probably modify it slightly.

Feel free to eat all your exercise calories as long as you aren't (or MFP isn't) overestimating your efforts, there's no reason why you shouldn't eat them all provided the estimates are accurate I eat all of mine, and it's not affected my losses at all.

I would say at least 1200 calories, net., but I would eat at least some of your calories back from exercise. I've notice people that eat their exercise cals back lose more weight and tend to keep it off. I still have a problem with it but I'm trying!

My starting BMI was over 40 - i am 6ft 1 tall
i went and did my own goals, setting them to just 1200
in the first 5 weeks i lost 23lbs then i hit a wall - no loss for 2 weeks- think ive entered slight starvation mode
after 2 weeks of no loss, i went through mfp guided goals
it put me up to 1630kcals on a sedetary lifestyle
im not a big exercise person, and have a desk job
im finding it hard to eat the 1630 but i'm getting there - the extra 430 can be hard to have without going over other micros, but i'm finding balance

Most important (personally) is to make sure you put the correct lifestyle into MFP - some ppl put that they are very active, when they only think they are, and so mfp calculates a higher intake NET than they really need

There is no one set number of calories that everyone should consume to prevent starvation mode. It's different for everyone! Mine is actually about 2000 if I don't exercise and more if I do. From my certifications and college courses, I've been taught that we shouldn't eat less then 80% of what we burn daily. Here's an example of how I do an analysis (with the simplest of formulas I've been taught using 1 calorie per kilogram of lean body weight per hour) of calorie needs to make this more clear:

100 kilogram (220 pounds) person, 30% body fat, moderately active, doing a workout that burns about 300 calories

100 kilograms x 30% = 30 kilograms of fat
100 kilograms - 30 kilograms = 70 kilograms of lean body mass
70 kilograms x 24 hours = 1680 calories for BMR
1680 calorie BMR x 1.5 activity factor for moderately active = 2520 calories per day used not counting exercise
2520 x 80% = 2016 MINIMUM calories per day on non-exercise days

2520 + 300 exercise calores = 2820 calories per day used on exercise days
2820 x 80% = 2256 MINIMUM calories per day on exercise days

Now, as was previously stated, 1 day of eating below that amount won't cause "starvation mode", but a couple months of it will effectively train the body to break down muscle and store fat to be able to burn less (from loss of muscle) and have fuel for later (from fat storage). This person on 1000 calories (or even the 1200 calorie "magic number" that is touted everywhere) will go into fat storage mode faster then someone who should be consuming a minimum of 1300 calories per day due to less muscle mass, but eventually it would happen for either. So, do your math and don't trust generalizations. And if you can get a more accurate BMR estimation with a metabolic cart instead of a formula, all the better!

swhitney
I've been using myfitnesspal for about 2 months. It told me I needed to consume 1330 to lose 2 pounds a week when I started at 250 pounds. I work out 3 times a week and when I calculate that in too, I have more calories to eat. My trainer said to make sure I eat those calories back because my muscles will continue to burn them off.
Today the site said I need to eat 1200 calories. I'm sticking with the 1330 my ipod touch myfitnesspal has on it. I stay true to what I ate by putting it in and I never lie because honestly who would I be lying to but myself?
Just try to make your calories from vegetables, fruit and protein. Why waste it on junk your body doesn't need.
Hang in there and Good Luck!!

Di :drinker:

Tonya,

I may have to shorten my cardio workouts because unless I am doing my math wrong that is just waaaayyy too many calories. My math brought me close to 3000 calories.

Send me your info and I'll check the math for you.