Table 3.

Nitrogen losses by type of excretion and per kg of body weight in healthy adult patients.

	Nitrogen Losses	% of nitrogen Losses
Urine	~ 36 mg/Kg BW/day	65%
Feces	~ 12 mg/Kg BW/day	21%
Other pathways *	~ 8 mg/Kg BW/day	14%

* Sweat, sebum, desquamation of the skin, nails, hair, saliva.