O lo'o fa'aauau pea ona a'afia le fa'alapotopotoga o mea'ai a lafumanu i le "fa'ama'i fa'alua" o le fiva pua'a Aferika ma le COVID-19, ma o lo'o feagai fo'i ma le lu'itau "faalua" o le tele o taamilosaga o le si'itia o tau ma le fa'asaina atoatoa. E ui lava o le auala o loʻo i luma e tumu i faigata, o loʻo faʻamalosia malosi foi e le pisinisi faʻatoʻaga manu lona lava suiga ma faʻaleleia ma faʻalauteleina faʻatasi le atinaʻeina o pisinisi. O lenei pepa e masani ona talanoaina pe faʻafefea ona faʻaleleia le gaioiga o enzymes digestive i totonu o moa moa, faʻaleleia le atinaʻeina o le intestinal ma faʻaleleia le fausaga o fuga o le intestinal.

O le vaega o le intestinal ose okeni taua tele mo moa e fa'ali ma mitiia ai mea'ai. O le gaogaoina o le intestinal e masani lava ona faia e ala i gaioiga faʻamaʻi (exopeptidase, oligosaccharide enzyme, lipase, ma isi); O mea'ai mole mole laiti e maua mai i le enzymatic e ui atu i le intestinal epithelial layer ma e mitiia e sela o le intestinal.

O le inumaga o se pa faʻanatura e puipuia ai moa mai meaʻai antigens, pathogenic microorganisms ma a latou metabolites leaga, ma tausia le mautu o le siosiomaga i totonu. Intestinal pa puipui e aofia ai paʻu masini, pa kemikolo, pa puipui microbial ma pa puipui puipuia faʻatasi e puipuia faʻatasi mai le osofaʻiga o mea antigenic mai fafo. Pa fa'ainisinia (pa fa'aletino) e fa'atatau i sela epithelial atoatoa o le intestinal e feso'ota'i vavalalata le tasi ma le isi; O pa puipui o vailaʻau e aofia ai le mucus, sua faʻafefeteina natia e sela epithelial mucosal intestinal ma mea antibacterial gaosia e siama parasitic intestinal, lea e mafai ona taofia pe fasiotia microorganisms pathogenic; O le pa puipui olaola e aofia ai le tetee atu i le colonization o laʻau nofomau intestinal i siama pathogenic ma le faaputuputu i le va o siama; O le pa puipui o le okeni lymphoid pito sili ona tele ma le aano lymphoid e feso'ota'i mucosa taua. O le mea lea, o le fa'atupuina o le fa'atupuina lea o le intestinal tract, ma fa'amautinoaina le soifua maloloina o le intestinal o le ki lea i le soifua maloloina lelei e aunoa ma se tetee.

Ole acid e iai a'afiaga ole acidification ma le bacteriostasis, ma e iai sona sao taua ile fa'afaileleina o moa. O mea masani masani e aofia ai acids carboxylic faigofie (formic acid, acetic acid, propionic acid and butyric acid), carboxylic acids o loʻo i ai vaega hydroxyl (lactic acid, malic acid, tartaric acid and citric acid), short chain carboxylic acids o loʻo i ai fusi faʻalua (fumaric acid and sorbic acid) ma inorganic acids ( phosphoric acid , phosphoric acid 12 ma le j2). O le acidification ma le bacteriostatic gafatia o acids eseese e eseese, mo se faʻataʻitaʻiga, formic acid o loʻo i ai le malosi sili ona malosi bacteriostatic; Faatasi ai ma acids i le iunite mamafa, o le formic acid e sili ona malosi le malosi o le sapalai o le hydrogen; O le propionic acid ma le formic acid o lo'o i ai le malosi malosi e tete'e ai le pala. O le mea lea, pe a filifilia le acid, e tatau ona fua faʻasaienisi e tusa ai ma meatotino o le acid. O se numera tele o suʻesuʻega ua faʻaalia ai o le faʻaopoopoina o meaʻai i meaʻai e mafai ona faʻaleleia ma faʻaleleia le atinaʻeina o le intestinal, faʻaleleia le gaioiga o enzymes digestive intestinal, faʻaleleia le fausaga o fuga o le intestinal, ma fesoasoani i le faʻaleleia o le soifua maloloina e aunoa ma ni meaʻai Iapani.

I le fa'ai'uga, e taua tele le tapenaga o le acid i le fa'amautinoaina o le soifua maloloina o le manava o moa. Pe a faʻaaogaina ma filifilia le vailaʻau, e tatau ona gauai atu i le tuʻufaʻatasia, vaega, mea e aofia ai ma le faʻagasologa o sauniuniga o le suka e faʻamautinoa ai le saogalemu, mautu ma le taua o oloa.