Going to Spain next week and I'll be doing a 500 or so mile trek over a month. I'm an extremely picky eater and the most common foods they eat over there are not kosher with my stomach or gag reflex. I smell fish and it will be worse than the puke scene in Team America. Any vitamins or supplement I can take with me that will help balance out the lack of certain foods that will be helpful for the physical demands of this trip?! Thanks guys n gals.