Potato seen on BBC2 last night.

My mum watched a show last night on staying young and it mentioned a purple sweet potato eaten by the truck load by locals in Okinawa Japan....She's spent an hour trying to find them already and hasn't managed to!
They're apparently purple INSIDE and creamy whit on the OUTSIDE.
If anyone here can help, that'd be amazing because she's desperate for them!

Thanks in advance

Lo

I also watched the programme, it did say that eating any purple fruit or veg would be just as good for you, e.g. aubergine, Blackcurrants etc. Just in case you can't find any of the purple sweet potatoes.

It is indeed sad - but I don't think wine counts as a fruit or a vegetable