The correct term to describe food energy is kilocalorie (kcal). However, kcals and Calories (with a capital "C") are used interchangeably. J
Figure 1-1. Energy Balance: Intake vs. Output
Intake = 2000 kcal Output = 3000 kcal Weight Loss
Taken from FI Katch and WD McArdle. Nutrition, Weight Control, and Exercise, 3rd ed. Philadelphia; Lea & Febiger, 1988.
Was this article helpful?