Dietary energy supply

Dietary energy supply
The dietary energy supply (DES) is the food
available for human consumption, expressed

in kilocalories per person per day. At the country
level, it is calculated as the food remaining
for human use after taking out all non-food utilization,
including exports, industrial use, animal
feed, seed, wastage and changes in stocks.
In 1961 the average global calorie availability
was as low as 2 193 kcal/cap/day; by 2011,
it had reached 2 868 kcal/cap/day, and was
centered more around a narrow base of staple
grains as well as meat and dairy products