Food is one of those very controversial, passionate issues. The most amazing thing about how controversial it is, is that people survive on such a wide variety of diets if you look at the all the regions and all the history of the world.
I will say, most things contain something that can be construed as toxic (this came a shock to me as a univeristy student), thus the counsel to eat a variety in your diet ... which is hard for us creatures of habit (like me!). That said, it was nice to have Arkane share her view and to get an alternate opinion from Junkmanme. As for me, I eat potato skins, but would now read up them if I was regularly feeding them in large quantities to chickens, which weigh a lot less than people.