Inga rongoā inkā mō ngā āhua tamariki me ngā whakawhitinga kaiarahi he mea nui i te hanganga o ngā hua ka tuhituhi ki runga i te tinana o ngā tamariki me ngā wahine. Noho ai te uara o te hauora, in particular te imū e whakapakari nei o ngā tamariki, ko te whakamahi i ngā inkā kāore i ngā rongoā he mea hē. Ko te hanga i ngā inkā kāore i ngā rongoā mō tēnei tikanga he whiriwhiri whakatika i ngā matū pūmau. Ko ngā hanganga katoa, inaianei ngā poraka, ngā kaiwhakapūmau, ngā waiwai, me ngā whakapae, ka whakatauia hei whakamahere i te kore noa iho i ngā rongoā hē pērā i te pūoro, te para, te kādimumu, te formaldehyde, rānei ngā pūngao whakatupu (VOCs). Hei tauira, ko ngā poraka e whakamahi ana he momo whenua rānei he momo hokohoko e taea ana te whakatakoto i te kore rongoā i mua i te whakamātau nui. Ko ngā kaiwhakapūmau i roto i ngā inkā kāore i ngā rongoā ka hangaia hei whakapakari i te pai rawa ki ngā momo papa e whai mana ana i te whakarite i ngā hua tamariki me ngā whakawhitinga kaiarahi, pērā i te kōkiro, te hīkino, rānei ngā papa mahana. Ka hangaia he hononga pūmau ki muri i te kore rongoā e tukuna ana, ahakoa i te paewhenua, i te wai, rānei i te totohu. Ko ngā waiwai takawaenga kāore i ngā rongoā e whakamahi ana hei whakauru i te pakitanga me ngā āhuatanga kawe i te inkā, hei whakaae i te hanganga tuhituhi pai karearhea. Ko ngā whakapae i roto i ngā inkā kāore i ngā rongoā mō ngā hua tamariki me ngā whakawhitinga kaiarahi ka whakatauia hoki. Ka whakamahiia hei whakapai i ngā āhuatanga pērā i te whiti o ngā wānanga, te whakarite, me te whakapae ki te wehe me te wehe, engari inaianei ko ēnei whakapae e tūtohu nei hei kāore i ngā rongoā. Ka whakatakotoria ēnei inkā ki ngā raupapa whakamātau rerekē, inaianei ko te whakamātau haumaru, te whakamātau rongoā i ngā momo biolojikī, me ngā whakamātau whakahaere roa, hei whakamana i te pai rawa o te haumaru. Ki te whakapā mai ngā kaiwhakamahi i te mōhio ake i ngā uiui hauora e pā ana ki ngā rongoā i roto i ngā hua, ka whakahaua te tono mo ngā inkā kāore i ngā rongoā mō ngā hua tamariki me ngā whakawhitinga kaiarahi, ka whakangungu te hīputango i te hanga inkā, ka whakatupu i ngā hanga inkā pai me te whakapono.