It could be interpreted as a shift towards other foodstuffs or as a worrying decline in the basic calorie consumption of the poor.

While there's no need to track a youngster's calorie consumption, it is important to make calories count.

In 1977-78 the average American ate 1,854 calories a day; in 1994-96, calorie consumption had risen to 2002.

This was partly due to the fact that even though the children believed they were eating less their actual calorie consumption did not decrease with the intervention.

Energy efficiency is extraordinarily high too, with calorie consumption about one-fifth of that of walking.

Worn on the wrist like an oversize watch, the Forerunner 201 measures distance, walking pace, average speed, elevation changes and calorie consumption.

Simply increase your calorie consumption by up to 50 per cent.

The Food Plan tool has four different intensity settings users can choose from, and gives a range of calorie consumption to aim for each day.

In the US, 20% of daily calorie consumption comes from that single source.

Total calorie consumption has been found to be related to obesity.