Energy needs depend on your sex

Men and women need different amounts of energy from food each day.

Age (years)	Energy (Men)	Energy (Women)
10 - 12	10.9 MJ	9.8 MJ
13 - 15	12.1 MJ	10.4 MJ
16 - 19	12.8 MJ	9.7 MJ
Adult	12.6 MJ	9.2 MJ

How much energy you need also depends on your lifestyle.