10,000 calorie challenge

And the point....?

I genuinely am puzzled - even someone involved in very strenuous activities all day in harsh conditions doesn't expend 10 000 calories* a day.

Five times the "reference value" of daily energy expended by the average adult, of 2kcal., which is approx.8.2kJ. (I found these values on various food packets in my own kitchen.)

Someone like a building-site labourer might expend 4kcal, especially in cold weather. Probably 5kcal for a mountaineer in very high mountains, or a polar explorer manually hauling a sledge across the terrain.

It may not be the case for you but do these foolish "challenges" come from an absurd, self-destructive drive wilfully to become dangerously obese?

......

* The calorie and kilocalorie are obsolete units with a rather messy history.

The kilocalorie (kcal) is still quoted on food labels along with the equivalent in the modern units of energy, the joule (J) and kilojoule (kJ), adopted internationally as long ago as 1948!