I'm on day 8 of a 14 day Water Fast right now and the only problem I'm having is bad breath. It's really horrible and it makes me want to end the fast and never fast again. Why can't we brush our teeth with natural toothpaste or use natural mouthwash ? I read that it can turn on the digestive system but is that really true or are some people just trying to be extra cautious ? Would I really lose out on the benefits if I brushed my teeth or rinsed with mouthwash ?