Ana iya raba tushen L-cysteine ???? zuwa kashi biyu masu zuwa:

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1. In vivo kira

Canjin Methionine: Jikin ?an adam na iya canza methionine (methionine) zuwa L-cysteine ????ta hanyar hanyoyin rayuwa.

?arfin ha?akawa ta atomatik: A matsayin amino acid marasa mahimmanci, L-cysteine ????za a iya ha?a shi da ?ananan adadi a cikin jiki, amma yana bu?atar sa hannu na abubuwan taimako kamar bitamin B6.

2. Samun waje

Abincin dabi'a:

Abincin da ke da methionine, irin su kifi, qwai, abincin teku, da dai sauransu, na iya inganta ha?in L-cysteine ????a cikin jiki ta hanyar ci.

Abincin da ke ?auke da L-cysteine ??kai tsaye: Wasu nama (kamar kaza) da kayan kiwo sun ?unshi ?ananan adadin L-cysteine ????