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Calories & Nutrition

Showing 3 articles filed under "Calories & Nutrition".

5 min read

Active vs. Total Calories: What's the Difference on Your Watch?

Discover the critical difference between active calories and total calories on Apple Watch, Garmin, and Fitbit, and how to avoid double-counting for weight loss.

2026-11-01

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Calories & Nutrition

4 min read

Calories per Gram of Protein, Carbs, Fat & Alcohol: The Atwater System

Learn the exact calories per gram of protein (4 kcal), carbs (4 kcal), fat (9 kcal), and alcohol (7 kcal), plus the thermic effect of food (TEF).

2026-11-01

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Calories & Nutrition

5 min read

How Many Calories in a Pound of Fat? (The 3,500 Calorie Rule Explained)

There are approximately 3,500 calories in one pound of body fat. Discover the biological math of human adipose tissue and why fat loss is non-linear.

2026-11-01

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