I am going on a cruise and know that I can not resist the chocolate buffet. I am scared to cheat because I don't know how my body responds. Should I experiment in the safety of my own home and eat something bad to see if my body's reaction is acceptable. I don't want to eat something bad or even a sugar free dessert and feel like crap while on vacation. Is it worth a stall at home to avoid potential crappy feeling on cruise? what do u all think?