§ 17
How much energy is in the meal, and what percentage comes from fat?
Answer: A guest or course organiser asks how much energy is in the lunch and how it is distributed. Energy is calculated with the EU's fixed conversion factors: protein and carbohydrate 17 kJ per gram, fat 37 kJ and alcohol 29 kJ. The energy percentage shows what share of the energy comes from each nutrient. The gram figures you find on the kitchen's recipe or product label.
Energi (kJ) = protein × 17 + fedt × 37 + kulhydrat × 17 + alkohol × 29 (gram × kJ pr. gram, forordning 1169/2011 bilag XIV)
Energi (kcal) = protein × 4 + fedt × 9 + kulhydrat × 4 + alkohol × 7
Energiprocent (E%) = energi fra næringsstoffet ÷ energi i alt × 100
For comparison, the Nordic nutritional recommendations (NNR 2023) recommend for the whole diet approximately 10-20 E% protein, 25-40 E% fat and 45-60 E% carbohydrate.
| Symbol | Meaning | Unit |
|---|---|---|
| protein_g | Protein | g |
| fedt_g | Fat | g |
| kulhydrat_g | Carbohydrate (available) | g |
| alkohol_g | Alcohol | g |
| = | Total energy | kJ |
| = | Energy in calories | kcal |
| = | Energy from protein | E% |
| = | Energy from fat | E% |
| = | Energy from carbohydrate | E% |
| = | Energy from alcohol | E% |
Does not apply when
The calculator's own default values inserted. The figures are calculated with exactly the formula the tool uses.
Substituted
Giver
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En kursusarrangør vil vide, om frokosten er let nok til en lang mødedag, eller en gæst spørger til energien i en ret. Beregneren regner energien ud fra gram protein, fedt, kulhydrat og alkohol med EU's faste faktorer og viser fordelingen i energiprocent.
Køkkenet oplyser, at kursusfrokosten har 35 g protein, 25 g fedt og 75 g kulhydrat pr. portion.
It means: Frokosten giver 2,795 kJ, svarende til 665 kcal. Protein står for 21.3 E%, fedt for 33.1 E% og kulhydrat for 45.6 E%. Fordelingen ligger inden for anbefalingerne.
Tre stykker smørrebrød har 30 g protein, 45 g fedt og 60 g kulhydrat. Gæsten drikker en øl på 33 cl med 13 g alkohol.
It means: Måltidet giver 3,572 kJ. Fedt står for 46.6 E%, og øllen alene for 10.6 E% af energien. Det er et fedt måltid.
1 kcal er ca. 4,2 kJ. Fedt giver over dobbelt så meget energi pr. gram som protein og kulhydrat.
Energiprocenterne skal tilsammen give 100.