Bio Logical Energy

The unit of energy : + in the dietary domain : calorie ( cal) + in the dietician’s capitalized : Calorie (Cal) + in mechanic : Joule ( J ) 1 Cal = 1000 cal =1 kcal= 4186.8 J * somes notes : + The well-fed adult : 2400 kcal /day + mankind uses the energy Consumption for many purposes .