No. It's too cold to support any kind of food chain.
Yes there is an edible plant in Antarctica. The sub-Antarctic edible plant is known as Kerguelen Cabbage.
Food in Antarctica is generally called edible.
All foods have chemicals in them.
Nothing edible grows on Antarctica: it's too cold. Some research stations, however, grow produce using hydroponic technologies, and consume those foods on the continent. This is dictated by the Antarctic Treaty. Foods prepared by kitchen staffs are made using imported foodstuffs from the country supporting the research station, and are foods people are used to eating in their home countries.
There are no native peoples in Antarctica -- so no native food.
There is no indigenous population in Antarctica. Researchers and other residents in Antarctica eat the foods traditional to their own home countries.
There are no native foods to Antarctica: it's too cold there to grow anything.
They eat edible foods.
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some foods can't be eaten and are only used for decorations therefore they are called unedible. whereas edible foods are most commonly referred to decorations that are eatable.
edible fruits...
mangosteen