[From Vegas to Tokyo]

It's really quite simple. Be as blunt or as subtle as you want, but at the end of the day you need to make it clear. "I live a healthy lifestyle. You can do whatever you want, but if you want me to stick around, you're going to have to take care of yourself". Relationships are and should be 'at will', especially for the guy. You should feel comfortable walking out of the relationship whenever you want. Always act like there are 100 other girls who are lined up outside your door, just waiting for you to finish this relationship. If she won't take care of her body, someone, who's probably younger, hotter, and more tolerable, will. Her call.