Kudya kwehuku kunofanirwa kupa chimiro chakaenzana cheamino acids akakosha kutsigira kukurumidza kukura nekusimudzira. Lysine, methionine, uye threonine zviri pakati pezvakanyanya kukosha, sezvo zvichipesvedzera zvakananga tsandanyama mapuroteni synthesis uye kushandurwa kwechikafu. Methionine, kunyanya, inodzikamisa amino acid mukudya kwehuku, zvichireva kuti kushomeka kwayo kunogona kukanganisa kukura kunyangwe zvimwe zvinovaka muviri zvakawanda. Nekuwedzera nemaamino acids ekugadzira, vagadziri vanogona kugadzira kudya kunonyatso kuzadzisa zvinodiwa neshiri zvinovaka muviri pasina kunyanya kutsamira pamapuroteni anodhura sekudya kwesoya kana hove. Izvi hazvingodzikisi mutengo wekudya chete asi zvakare zvinoderedza nitrogen excretion, zvichibatsira kune dzimwe nzira dzekurima dzakasimba.