All about fruitarianism with a long-term fruitarian, Lena
I will not kill or hurt any living creature needlessly, nor destroy any beautiful thing, but will strive to save and comfort all gentle life, and guard and perfect all natural beauty upon the earth.
Nitrogen balance is a measure of nitrogen input minus nitrogen output:
Nitrogen Balance = Nitrogen intake - Nitrogen loss
Nitrogen is a fundamental component of amino acids, which are the molecular building blocks of protein. Measuring nitrogen inputs and losses can be used to study protein metabolism.