Hey TeamHere is one of the most frequently asked questions I get. How do I determine my calorie target? I know this can be a bit confusing at first but here is a simple formula to help you determine if you had hit your calorie deficit (that is if you are trying to lose weight)
I use the Harris Benedict Equation to calculate my targets. There are a couple steps to the process. First we determine the
Basal Metabolic Rate (BMR). This is your bodies normal daily metabolic rate.
Step 1: Determine BMR
Women: 655 + (4.35 x Weight in pounds) + 4.7 x height in inches) - (4.7 x age in years)
Men: 66 + ( 6.23 x weight in pounds ) + ( 12.7 x height in inches ) - ( 6.8 x age in year )
Example: We have a 42 year old woman that is 5'3" and weighs in at 138 lbs.
BMR: 655 + (4.35 x 138) + 4.7 x 63) - (4.7 x 42) = 1354
Step 2: Determine Calorie TargetTo determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows:
- If you are sedentary (little or no exercise) : Calorie-Calculation = BMR x 1.2
- If you are lightly active (light exercise/sports 1-3 days/week) : Calorie-Calculation = BMR x 1.375
- If you are moderately active (moderate exercise/sports 3-5 days/week) : Calorie-Calculation = BMR x 1.55
- If you are very active (hard exercise/sports 6-7 days a week) : Calorie-Calculation = BMR x 1.725
- If you are extra active (very hard exercise/sports & physical job or 2x training) : Calorie-Calculation = BMR x 1.9
For our example we will select Moderately Active! Target Calorie Goal = BMR * Moderately Active Level
Target Calorie Goal: 1354 * 1.55 =
2099Now we want to subtract 500 from our target to give us a calorie deficit for the day.
New Target Calorie Goal: 2099 - 500 =
1599 Step 3: Determine Daily Actuals
Now it is time to see how our workout comes into play with our daily numbers. Lets say in our example she burns 700 calories for her workout.
Daily Actual = New Target Calorie Goal - BMR - Calories Burned From Workout
Daily Actual = 1599 - 1354 - 700 = -455
If you want a true 500 calorie deficit for the day you would need to decrease your intake by 45 for the day! I would not go much over 500 you can really have some negative side effects if you have to much of a calorie deficit.
Now if you want to gain weight you need to have a calorie surplus! So you would want to add calories to your daily plan!
I hope this helps you understand how your workout comes into play with your daily nutrition targets! The best way to track this is by tracking you daily food intake so if you are not doing this you need to start!
DIG DEEP!-Scott