Exactly. Eating a potato is fine. You can even survive eating only potatoes (so long as you vary the preparation, I believe), that isn't too controversial. T

Exactly. Eating a potato is fine. You can even survive eating only potatoes (so long as you vary the preparation, I believe), that isn't too controversial. The problem comes if you try to tell me that surviving on only potatoes is a good idea. For that claim, I am going to demand some serious legwork. The potato salesman and a few potato enthusiasts claiming that he does it and feels fine isn't going to cut it.