4. Hei ārai i ngā mate, ka taea e te collagen te pupuri i te mahi a ngā whekau, te ārai i ētahi mate, ā, ka pāngia ngā whekau me ngā okana o te tinana e te collagen. Ka pā kino te korenga o te collagen ki te hauora o ngā whekau, tae atu ki te mate. Mēnā ka whakakīia katoatia te pūmua collagen, ka taea e ia te tāpiri i ngā whekau o roto, te āwhina i te kai me te nekehanga o ngā whekau o roto, ā, ka ārai pai i ētahi mate;