<prompt> Pfupisa nyaya yacho: Pashure pamakumi amakore ari mumugariro wokusava nebetsero, mazai anoratidzika kuva ane nguva yemberi yakaoma. Kudyiwa kwakawedzera ne2.4 muzana muna 2014, izvo zvakaenzana nemamwe 700 000 anobikwa, anovhenganiswa uye anodyiwa mazuva ose evhiki. Uku kumukazve kunoshamisa kwezai, iro rakanga rava kutambura nenhevedzano yezvinetso zvoutano uye kuchinja mufashoni yezvokudya kubvira muma1950 apo rudzi rwaifara kuEnda unoshanda pazai. Kumutsidzirwa kwacho kuri kunzi kunokonzerwa neidi rokuti zvinoumba rutivi runokosha rwezvokudya zvine mapuroteni akawanda zvakadai seAtkins nePaleo, izvo zvinopikira kuderedza uremu uye kunyange upenyu hurefu. Kudya mazai kwakawedzera ne2.4 muzana muna 2014, zvakaenzana ne700 000 pazuva. Nyanzvi dziri kupa mbiri yokumutsidzirwa nokusimuka kwezvokudya zvine mapuroteni akawanda kubatanidza Atkins nePaleo. Somugumisiro, kutengeswa kwemazai zvino pakupedzisira kudzokera kumwero wakaonekwa muma1980 apo aichimbova gurukota rezveutano reTory Edwina Currie nenzira ine mukurumbira wakaipa akazviti ngozi yeutano nemhaka yokushatiswa nesalmonella. Kurwiswa ikoko kwakamutsa kunetseka kwakanga kwavapo pamusoro pamazai, ayo akanga achishorwawo navanachiremba nokuda kwokuva nemwero yakakwirira yecholesterol, iyo yaifungidzirwa nenzira isina kururama kuti inoita kuti mitsipa iome. Zvisinei, zai racho rava noutano hwakanaka pashure pokuchinja zvokudya zvehuku, zvichiguma nokuderera kwecholesterol neanenge 13 muzana kusvika ku100g, inova chikamu chimwe muzvitatu cheyero yezuva nezuva inokurudzirwa. Panguva imwe cheteyo, Vitamin D, iyo inokosha nokuda kwamapfupa ane utano hwakanaka, yakakwira ne64 muzana kana ichienzaniswa negumi remakore akapfuura. Mugumisiro wacho ndewokuti mazai ari kukurudzirwa zvino sezvokudya zvine utano sezvo akazarawo nemapuroteni, mavhitaminzi, zvicherwa uye mafuta anokosha anokosha kumuviri une utano. Kusvikira muna 2009, vanhu vokuBritain vainyeverwa kuti vasadye mazai anopfuura matatu pavhiki pamusana pokunetseka nezvecholesterol asi nyevero iyi zvino yaraswa. Tsvakurudzo yakaitwa nenyanzvi paUniversity of Surrey yakawana kuti vanhu vanorema zvikuru vakapiwa mazai maviri pazuva sorutivi rwokudya kunoderedza macalorie vakarasikirwa nehuremu uye havana kuona kuwedzera mumwero wecholesterol yeropa. Kana uri kutsvaka chikwereti, uchibatira...  <response>: Kudyiwa kwakawedzera ne2.4 muna 2014, zvakaenzana ne700 000 pazuva. Akatambura nhevedzano yezvityiso zvoutano nemishandirapamwe yokunyomba chibviro chama 1950. Mazai aishorwawo nokuti aiva necholesterol yakawanda. Zvakanga zvine mukurumbira zvakatemerwa kutyisidzira utano nemhaka yekusvibiswa nesalmonella. Zvino, kutengeswa kwemazai pakupedzisira kwakadzokera kumwero mumwe chetewo waivapo muma1980. Kumutsidzirwa kunotaurwa nezvemaitiro azvino uno ezvokudya zvePaleo neAtkins zvine mapuroteni akawanda. 