Energy

macronutrient Unit: kcal

Calories (kilocalories) measure the energy your body extracts from food. Carbohydrates and protein each yield 4 kcal per gram, while fat yields 9 kcal per gram and alcohol 7 kcal per gram. Total calorie intake relative to expenditure is the primary driver of changes in body weight over time.

Reference Daily Intake · per 100g

USDA/NIH DRI · National Academies

Top 20 Foods by Energy

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Reference Daily Intake

No established RDA for this nutrient.