Physical stores

Hi all,

I hope I'm posting in the right forum and that you don't mind me writing in english, I do understand Deutsch, but my writing sucks ;-)

I'm from Denmark and driving to Schwitzerland soon, so my question is:
Are there any big fitness/bodybuilding stores in Germany that are worth driving by? I'm mostly after supplements, but wouldn't mind clothing as well :-)

Thanks in advance!

I dont know big shops. But All Stars has some stores in bigger cities. But I am not sure if its worth to go there.