I would be a little bit suspicious of the "etc" in the study where it mentions "tofu, etc.".
The latest info I hear from Dr. Oz contradicts. (Don't sneer, he has lots of money and a huge medical team who does a LOT of research before making claims on the show and he doesn't (appear to) sell anything except himself - doesn't mean it's all true but good place to start) . His scientist guy says that soy that is unprocessed (i.e. a whole food) such as soybeans, miso and tofu is good.
The soy in "fake meats" and other boxed or packaged foods (can't remember about soy milk) should be avoided. He had a scientist on the show that explained why soy has got such a bad rap, something to do with the processed "soy particle" interfering somewhere it's not supposed to be. Sorry for the low quality in technical details in repeating what I heard.
(By the way, Dr. Oz recommends resveratrol with the caveat that it is experimental - he says he takes it)
Too much soy, tofu etc reduces brain mass.
1. White LR, Petrovich H, Ross GW, Masaki KH, Association of mid-life consumption of tofu with late life cognitive impairment and dementia: the Honolulu-Asia Aging Study. Fifth International Conference on Alzheimer's Disease, #487, 27 July 1996, Osaka, Japan. 2. White LR, Petrovitch H, Ross GW, Masaki KH, Hardman J, Nelson J, Davis D, Markesbery W, Brain aging and midlife tofu consumption. J Am Coll Nutr 2000 Apr;19(2):242-55.