I wouldn't use the soya if it has sugar. You can make your own with stevia or splenda if you want to make a teriaki sauce. I use a an organic low-sodium tamari sauce, which is also soy based. It is brewed. Don't get the cheaper stuff that is not brewed - it doesn't taste the same.
Started Phase 1 January 2011, Phase 2 for 4 weeks, Phase 3 for 2 weeks; started Phase 4 March 27, 2012 !!!!! Yahoo!