I mentioned Revival Soy products in my first book, Midlife Mamas on the Moon, and now a study from the Johns Hopkins University shows that Revival Soy products can reduce hot flashes and night sweats.  I don’t know about other forms of soy, but a high-quality Revival shake once a day significantly improved quality of life compared to placebo in this study.  These products (www.revivalsoy.com) have 6 times the concentration you’ll find in soy milk, so that may be a factor.