Ki­wifruit full of vi­ta­min C


Eat­ing two ki­wifruit each day could help keep mus­cles in top form, says new re­search.

A Univer­sity of Otago study, which was re­cently pub­lished in the Amer­i­can Jour­nal of Clin­i­cal Nutri­tion, looked into what role vi­ta­min C plays in the body.

Lead re­searcher in the project, Pro­fes­sor Mar­greet Vis­sers, said mus­cles that sup­port and move the skele­ton were sen­si­tive to changes in vi­ta­min C in­take.

If con­sump­tion of the vi­ta­min dropped be­low op­ti­mal lev­els, mus­cle func­tion could also fall.

The re­searchers gave 54 males aged 18 to 35 ei­ther half a ki­wifruit or two ki­wifruit ev­ery day over six weeks, and then mea­sured the vi­ta­min C con­tent in their mus­cles.

They found gen­eral en­ergy lev­els were in­creased with the ‘‘ two per day’’ ki­wifruit dose, some­thing the re­searchers think comes from the op­ti­mal mus­cle func­tion.

Prof Vis­sers said eat­ing ki­wifruit was an ef­fi­cient way to get vi­ta­min C be­cause ki­wifruit had much higher lev­els than other fruits and veg­eta­bles.

‘‘Many peo­ple think that all fruit and veg­eta­bles are equally able to sup­ply vi­ta­min C, but this is not the case,’’ she said.

‘‘We should eat a good range daily, but be­cause many fruit con­tain only one-tenth of a healthy daily vi­ta­min C re­quire­ment, we would rec­om­mend at least one serve per day of a high-value food like ki­wifruit.’’

The study was part of a longer- term re­search project look­ing into vi­ta­min C in the hu­man body, and was funded by Ze­spri In­ter­na­tional and the Univer­sity of Otago.

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