This energy balance equation can be unbalanced by changing energy intake, energy expenditure, or both, as shown in the following examples. (1 pound (lbs.) of fat equals 3,500 kcal.)
Example 1:
Eating 1 extra chocolate chip cookie (65 kcal) each day for 1
year
' Example 2:
If you maintain your kcal intake and run an extra mile per day, 5 days per week, you would expend an extra 100 kcal/mile x 5 miles/week x 52 weeks = 26,000 kcals per year. This would result in a net weight loss of 7.4 lbs. per year (26,000 ÷ 3,500).
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would be: 65 kcal x 365=23,725 kcal. This would add up at the end of the year to a total net weight gain
v of 6.8 lbs. (23,725 ÷ 3,500).
You see? The energy balance equation is very sensitive!
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