Dietary energy supply

Dietary Energy Supply is the amount of food energy available to be consumed by a population in a specific region or country. It is usually measured in kilocalories per person per day. The Dietary energy supply is influenced by a variety of factors including food production, import and export, and food waste.

Overview

The Dietary energy supply is a measure of the amount of food energy that is available for consumption in a given population. It is an important indicator of food security and nutritional adequacy. The Food and Agriculture Organization (FAO) of the United Nations monitors the dietary energy supply globally and provides data on its website.

Calculation

The dietary energy supply is calculated by adding the total amount of food produced in a country to the amount of food imported, then subtracting the amount of food exported and the amount of food wasted. This gives the total amount of food available for consumption. This figure is then divided by the population size and the number of days in the year to give the average dietary energy supply per person per day.

Factors Influencing Dietary Energy Supply

Several factors can influence the dietary energy supply. These include:

• Food Production: The amount of food a country produces can greatly influence its dietary energy supply. Countries that produce a lot of food tend to have a higher dietary energy supply.

• Import and Export: Countries that import a lot of food can increase their dietary energy supply. Conversely, countries that export a lot of food can decrease their dietary energy supply.

• Food Waste: Food waste can significantly decrease a country's dietary energy supply. Reducing food waste can therefore increase the dietary energy supply.

See Also

• Food security
• Nutrition
• Food waste
• Food and Agriculture Organization

References

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  World map of energy consumption 2001-2003

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  World map of energy consumption 1989-1991

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  World map of energy consumption 1979-1981

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  Average dietary energy supply by region