I was once put on an elimination diet for 6 weeks for an allergy. It consisted mainly of potatoes and pears. Because I felt so deprived I ate a large packet of potato chips every day as well as potato meals. At the end of the 6 weeks my allergy raged on unabated but I had lost 5 kilos. I didn't turn off potatoes but have never been able to face another pear since.

Good luck to potato man, he will lose weight but I bet he doesn't stick at it for too long. A diet with no variety gets you down in spirit pretty quickly, especially when no-one else around you is depriving themselves.

Good on him doing whatever he chooses for his own body.

I just feel if he has 'such low willpower' sorry, that once he gets down to his weight will he ever be able to eat a varied way of eating for the rest of his life.  

Sometimes a short stint on most anything monotonus, to get past a 'stalled' weight loss works.

Living in Oakleigh he probably can't afford anything else but spuds.

Good on him for trying. I hope it works out for him. But as he says in the film he had just bought 6 kgs of potatoes and was carrying them on his back on the way home. If he carried this weight on his back 3 times a day for a couple of kilometers and worked up the distance I'm sure he would lose the weight much quicker. I don't think I could last too long on potatoes only, I would have to slip in a few prunes every now and then so not to clog up the works. Remember the man who lived on McDonalds for a year and lost weight?

If I ate nothing but potatoes I would lose weight too.

Imagine every day looking forward to eating nothing but potatoes. Enough to dampen any appetite.

Certainly not something to look forward to of a day.

hope he hasnt got arthritis - potatoes make fingers toes start to curl up and not just RA. If have arthritis in hands check if straight and can make a fist easily no pain - if yu cant then give up spuds tomato and other deadly nightshade family.