I just came back from my local health food store with my usual goodies. While there, I picked up some flaxseed meal for its roughage properties and omega oils. The sales person also said that Lignans (and a lot are in flaxseed meal) will reduce the amount of free estrogen in the body and increase the testosterone levels at the same time. For someone trying to increase lean body mass and reduce fat, this seemed like a good thing. I was wondering, just how much of an impact Lignans have on the estrogen and testosterone levels. Will it significantly reduce estrogen levels? Or only reduce them a little bit? Will it significantly or only slightly increase testosterone levels?