How reliable is IIFYM?

capriqueen

I plugged in my calories here, and with a 5 times a week exercise routine I got a TDEE of 2083, and a daily allowance of 1560. How reliable is this? Have you had success with IIFYM?

deksgrl

I plugged in my calories here, and with a 5 times a week exercise routine I got a TDEE of 2083, and a daily allowance of 1560. How reliable is this? Have you had success with IIFYM?

All calculators estimate your calories based on your age, size, gender. It's an average for most people that size. There are a few different methods used to calculate BMR and then an activity factor is applied to calculate TDEE.

MFP is not a TDEE calculator. A properly set MFP+exercise calorie goal should be somewhere in the same ballpark as a properly set TDEE - % goal.

IIFYM is giving you a calorie deficit of about 500 calories which should result in about 1 pound a week loss. If you are correctly weighing/measuring/logging your food, it should work fine. Remember that weight loss is not linear, you may not lose steadily at that same rate all the time, even with accurate logging. And when you get to the last 10 pounds, it will be even slower.

cwolfman13

Considering that the average female maintains right around 2000 calories per day, that sounds about right. Just remember that all of these calculators are just giving you an estimate as per the information you put in and statistical averages of other individuals of similar stats. It's up to you to be as precise as possible, to be consistent, and to make adjustments as necessary per real world results.

Essentially that calorie goal is giving you roughly 500 calories deficit from your theoretical maintenance of 2083...that equate to roughly 1 Lb per week loss as a general trend over time (not linear). If you did your inputs properly, your activity level would include exercise, so you wouldn't eat back exercise calories with this method as you would want to do with MFP.

navyrigger46

Personally I plug my numbers into 4-5 different TDEE calculators and take the average, but that's me. Once you have been doing it a while you'll zero in on what's accurate for you.

Rigger

EmmieBaby

<--20lbs loss from eating whatevah i wanted and not giving a rats bum