Calories 101
Understand calories without the confusion.
Learn what calories are, how energy balance influences your weight and why the scale can fluctuate—even when you haven’t gained body fat. This beginner-friendly course explains the fundamentals in approximately 15–20 minutes.
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What is a Calorie?
Learn what calories measure, where they come from and why calorie quantity and food quality both matter.
Learn what calories measure, where they come from and why calorie quantity and food quality both matter.
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Understanding Energy Balance
Learn how the calories you consume compare with the energy your body uses throughout the day.
Learn how the calories you consume compare with the energy your body uses throughout the day.
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Deficits, Maintenance and Surpluses
Learn how eating below, around or above your energy needs can influence your bodyweight over time.
Learn how eating below, around or above your energy needs can influence your bodyweight over time.
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Why Your Weight Fluctuates
Learn why your weight can change from one day to the next—even when your body fat has barely changed.
Learn why your weight can change from one day to the next—even when your body fat has barely changed.
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Putting Calories Into Practice
Learn how to use calorie awareness in everyday life—with or without tracking everything you eat.
Learn how to use calorie awareness in everyday life—with or without tracking everything you eat.
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