ʻO ka ʻōpala palaiki he mea ʻai meaʻai i lawe ʻia mai loko mai o ka lāʻau laiki, ka papa waho o ka laiki. ʻO ka lāʻau laiki, kahi huahana o ka hana laiki, waiwai i nā ʻano meaʻai like ʻole a me nā mea bioactive. He waiwai nui ka lāʻau palaka i nā ʻano meaʻai like ʻole, e like me: Oryzanol , hui B (me nā huaora B1, B2, B3, B6, etc.) a me ka huaora E, beta-sitosterol, gamma-glutamin. Ua loaʻa ka nui o ka manaʻo o ka lāʻau lapaʻau no kāna mau pono olakino, ʻoi aku hoʻi ma ke kahua o nā mea hoʻohui olakino a me nā meaʻai hana.