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Methods for calculating daily caloric needs

GeauxDATY

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There are many formulas for calculating daily caloric requirements but which one is the best for us meat heads?


The BMR (basal metabolic rate) formula for men is:
(12.7 x your height in inches) + (6.23 x your weight in pounds) - (6.8 x your age in years). Add 66 to the total for the BMR.
From here one could use the Harris Benedict formula to calculate your caloric needs based on your activity level and BMR.


If you don't exercise or exercise little, multiply the BMR by 1.2 for daily calories.


If you take part in light exercise or sports 1-to-3 days each week, multiply the BMR by 1.375 for daily calories needed.


People who exercise moderately and/or play sports 3-to-5 days a week should multiply their BMR by 1.55


Active people who engage in strenuous sports or hard exercise 6-to-7 days a week need to multiply their BMR by 1.725.


People who engage in very physically challenging jobs or exercise, such as 2-a-day workouts, should multiply their BMR by 1.9 for daily caloric needs.


Another method is to simply multiply either your weight or LBM by a certain factor to determine how many grams of protein is needed an then extrapolate from there. For example:


A 200lb person at 10% BF would have a LBM of 180lbs. One could then multiply that number by 2.0grams of protein per lb of LBM to get 360grams of protein per day. Using this number one would simply decide the percentages of macros they want in their diet and calculate from there.


The last method that I'll discuss is multiplying your total bodyweight by a certain factor depending on what your goals are. For example:


A 200lb man wanting to only maintain his current weight would simply multiply 200lbs x 15 calories/lb = 3000 calories.


I know this is only a small fraction of the methods used and would like to know what method do you guys use and what has or hasn't worked for you in the past.
GeauxDATY
 
Measuring BMR is for beginners. If you've been training for awhile and have been tracking what you eat it should be dialed in by now and easily adjusted for what your current goal is.
 
Measuring BMR is for beginners. If you've been training for awhile and have been tracking what you eat it should be dialed in by now and easily adjusted for what your current goal is.
You're right and my diet is totally dialed in but I've been training for 30 years. However, there are many younger guys on these boards that do need help. This post was meant to give them a starting point and hopefully have some other vets post their methods so we can all learn something.
 
Or just goto iifym.com/calculator if you're lazy

Sent from my SCH-I535 using Tapatalk 2
 
Since we're talking about measuring daily caloric needs I have a question I'd like to ask. I believe this question very much pertains to daily calorie needs if true.

I've found that I have to eat well below even the most conservative of calculations that I've done in order to drop bf%, even with t3 on board.

Let's assume that human error (me) is not in play here. That being said, could those of us that don't find the daily calorie calculations to be an accurate representation of 'their' body be dealing with an food absorption issues (either over or under)? Example, if someone's body was very efficient at extracting nutrients they would in effect be getting more bang for their caloric buck (and vice versa).
 
Since we're talking about measuring daily caloric needs I have a question I'd like to ask. I believe this question very much pertains to daily calorie needs if true.

I've found that I have to eat well below even the most conservative of calculations that I've done in order to drop bf%, even with t3 on board.

Let's assume that human error (me) is not in play here. That being said, could those of us that don't find the daily calorie calculations to be an accurate representation of 'their' body be dealing with an food absorption issues (either over or under)? Example, if someone's body was very efficient at extracting nutrients they would in effect be getting more bang for their caloric buck (and vice versa).

Powermaster

As he put it, "Measuring BMR is for beginners."

In other words, "measuring daily caloric needs" is a ball park figure.

General Adaptation Syndrome

Another factor is the body's ability to learn to live and remain in homeostasis with what you are consuming. It is a survival mechanism.

That meaning that you body will adapt to its environment (training, nutrition, etc.) to remain in homeostasis.

1) Hardwired For Fitness

This book by Dr Portman and Ivy (specialist in Sport Nutrition) examine the problems of caloric intake, exercise and weight loss.

2) Metabolic Damage

Dr Layne Norton (PhD Nutrition, Pro-Natural Bodybuilder and Powerlifter) has two videos that address the same issues and come to the same conclusions as Portman and Ivy.

http://www.biolayne.com/nutrition/biolayne-video-log-15-metabolic-damage-v2-0-metabolic-capacity/

http://www.biolayne.com/nutrition/b...chanistic-discussion-of-metabolic-adaptation/

Food Absorption Issues

EVERYONE has "food absorption issues". You body is very INEFFICIENT at extracting nutrients and using them.

The body's inefficiency is comparable to a...

Gas Engine
https://en.wikipedia.org/wiki/Engine_efficiency

"Modern gasoline engines have a maximum thermal efficiency of about 25% to 30% when used to power a car. In other words, even when the engine is operating at its point of maximum thermal efficiency, of the total heat energy released by the gasoline consumed, about 70-75% is rejected as heat without being turned into useful work..."

You body utilization of the nutrients of food works the same way.

The 80/20% Rule (Pareto principle)

This rule applies to nutrition, training and everything else in life.

That means...

1) Only 20% of the nutrients you consume are efficiently used.

2) Only 20% of the training you perform elicit a positive training effect.

Fluid Environment

You body is constantly changing. What works today may not work tomorrow.

This take us back to the General Adaptation Syndrome. You body via homeostasis find a way to stabilize you body's environment. It is a built in survival mechanism.

Thus, T3 will only work so long before you body learns and adjust to it.

It the same with caloric intake, training, anabolic medications, etc.

"Everything Works but Nothing Works Forever"

At some point you need to change things up in your diet, training etc. to produce results.

Kenny Croxdale
 
Kenny Croxdale,

Thanks for the post. Very informative and it makes sense with how my body has responded over the last two years to various changes in diet, training and meds.
 
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