Intake of hole grain food like oats (A. Sativa) elevates serum enterolactone, a phytoestrogen, which may increase SHBG...
from:
J Steroid Biochem 1986 Nov;25(5B):791-7 Links
Determination of urinary lignans and phytoestrogen metabolites, potential antiestrogens and anticarcinogens, in urine of women on various habitual diets.
.."They bind with low affinity to estrogen receptors and preliminary results suggest that they may induce production of sex hormone binding globulin (SHBG) in the liver and in this way may influence sex hormone metabolism and biological effects.."
...The highest mean excretion of the most abundant compound, enterolactone, was found in the macrobiotic group....
from:
J Steroid Biochem 1987;27(4-6):1135-44 Links
Effect of dietary components, including lignans and phytoestrogens, on enterohepatic circulation and liver metabolism of estrogens and on sex hormone binding globulin (SHBG).
Adlercreutz H, Hockerstedt K, Bannwart C, Bloigu S, Hamalainen E, Fotsis T, Ollus A.
...Enterolactone excretion correlated negatively with plasma free testosterone...