Could I survive on nothing but potatoes and milk?

I was reading a recent BBC Future article (Could you survive on just one food?) and was thinking that Cecil had addressed this at some point. Sure enough, the author refers to the 2008 column (about halfway down), with a shoutout to “his assistant” (Una) to boot. A Scottish dietician interviewd for the article responded to the column’s findings with:
[QUOTE=Jennie Jackson, Glasgow Caledonian University]
Oh, that’s our diet – that’s the Scottish diet from a hundred years ago. That fits right in. Potatoes, milk, and oatmeal, with some kale in there, too.
[/QUOTE]
Well done.