NutriBasesNutrition Intelligence

Nutrients

Calories

Total food energy. The general daily reference is about 2,000 kcal, but individual needs vary by sex, age and activity.

Richest source in our database: Fat, Beef Tallow (902 kcal per 100 g). Read the full low calorie foods for volume eating and fullness guide.

Daily Value (DV) 2,000 kcal
Unit kcal per 100 g
Guidance This value is best judged in the context of your whole diet and daily calories.

Understanding calories

What it does

A calorie (kilocalorie) is a unit of food energy that fuels everything the body does, from breathing and circulation to physical activity. The energy comes from three macronutrients: fat supplies about 9 calories per gram, while protein and carbohydrate each supply about 4. The 2,000-calorie figure on food labels is a rounded reference point, not a target for everyone.

When intake runs high

Weight change reflects energy balance: eating more calories than you burn leads to weight gain over time, while a sustained shortfall leads to weight loss. Because portion sizes and calorie-dense processed foods have grown, many adults find it easy to overconsume calories without feeling especially full. Very low intakes, on the other hand, can leave you short on energy and essential nutrients.

Absorption & pairing

Daily needs depend on age, sex, body size and activity level, so an athlete may need well over 2,000 calories while a sedentary older adult needs fewer. Calories from whole foods rich in protein and fiber tend to be more filling than the same calories from refined snacks.

Food-first strategy

Build meals around vegetables, fruits, whole grains, lean proteins and legumes, which deliver nutrients and fullness per calorie. Watch liquid calories from sugary drinks and alcohol, since they add up quickly without curbing appetite. Checking serving sizes on the label helps you match intake to your own needs.

The Calorie listed on food labels is actually a kilocalorie, equal to 1,000 of the calories used in chemistry. Fat packs more than twice the calories per gram of protein or carbohydrate. The 2,000-calorie reference on U.S. labels was chosen partly because it is a round number close to the needs of many adults.

Foods highest in calories

Full ranking

Values per 100 g of edible portion, sorted high to low. The bar shows the share of the Daily Value.

  1. Fat, Beef Tallow902 kcal45%
  2. Fish Oil, Cod Liver902 kcal45%
  3. Fish Oil, Herring902 kcal45%
  4. Fish Oil, Menhaden902 kcal45%
  5. Fish Oil, Menhaden902 kcal45%
  6. Fish Oil, Salmon902 kcal45%
  7. Fish Oil, Sardine902 kcal45%
  8. Lard902 kcal45%
  9. Butter, Clarified Butter (Ghee)900 kcal45%
  10. Fat, Chicken900 kcal45%
  11. Fat, Goose900 kcal45%
  12. Fat, Turkey900 kcal45%

See also

Foods highest in calories Foods lowest in calories Low Calorie Foods for Volume Eating and Fullness guide Meat & Poultry Highest in Calories Fish & Seafood Highest in Calories Eggs & Dairy Highest in Calories All nutrients

Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.