It's fun looking at everyone's junk food preferences. Shame on Lambiel, coming from Switzerland, not liking any junk food. Not liking chocolate? Maybe he just doesn't consider it a junk food. (I personally use it as a meat substitute.)
No way a Swiss would think of chocolate--especially their own variety--as "junk" food. Besides, chocolate, at least the dark variety unadulterated with tons of milk and sugar, is actually quite good for you!