Correct formula for caloric deficit

Dorian1988
Posts: 45 Member
When people say caloric deficit, they mean BMR + exercise - intake right?
Currently I use a BMR that I computed myself based on how much weight I lost in one week. It also was confirmed by the next week. All BMR calculators I found online gave me a much lower value that didn't match my real weight loss rate.
Can I have your opinion about this? Did you guys get an accurate BMR using any of the usual formulas?
Currently I use a BMR that I computed myself based on how much weight I lost in one week. It also was confirmed by the next week. All BMR calculators I found online gave me a much lower value that didn't match my real weight loss rate.
Can I have your opinion about this? Did you guys get an accurate BMR using any of the usual formulas?
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Replies
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Sure you didn't calculate TDEE? BMR are your basal metabolic rate calories (i.e coma calories). I trust the calculators for BMR, but I have found some of the TDEE to be off. It depends on what formula they are using.0
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BMR+Non-exercise activity+exercise= TDEE
A deficit is when your intake is lower than your TDEE.
MFP uses BMR+non-exercise activity as your baseline. They calculate your deficit for you. You're expected to eat back a portion of the exercise calories because that's not part of MFP's equation.0 -
When people say caloric deficit, they mean TDEE - intake. Your TDEE has multiple components:
BMR
Thermic Effect of Food
Non-Exercise Activity
Exercise Activity
If you just total BMR and exercise, you're excluding other calorie-burning factors. If your non-exercise activity includes a lot of movement (i.e. waiting tables) you could be neglecting a fairly large amount of calories.0 -
No, that would be BMR + Exercise + TEF + NEAT - Intake.
NEAT is your non-exercise activity, and can be quite a lot. It's still a good chunk even for "sedentary" folks.
TEF is the calories for digestion.0 -
So in that case the value that I calculated after one week of weight loss was BMR + NEAT + TEF. That explains why it was larger. I think you just care about their sum not every individual component.0
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