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CaloriesThe amount of energy in an item of food or drink is measured in calories. When we eat and drink more calories than we use up, our bodies store the excess as body fat. If this continues, over time we may put on weight.

As a guide, an average man needs around 2,500kcal (10,500kJ) a day to maintain healthy body weight. For an average woman, that figure is around 2,000kcal (8,400kJ) a day. These values can vary depending on age, size and levels of physical activity, among other factors. (Source: NHS).

The Eatwell Guide | NHS
The Eatwell Guide shows how much of what we eat overall should come from each food group to achieve a healthy, balanced diet.
Understanding calories | NHS
Calories | Wikipedia
A balanced diet: do the numbers matter? | British Heart Foundation
Alcohol and calories | Drinkaware

Is calorie counting a scam? | AsapSCIENCE | 13 Jan 2022 | 5m 37s
 What is a calorie? | TED-Ed | 13 Jul 2015 | 4m 11s

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