Protein, Brassicas, and Dietary Fiber

I found an interesting study where glutathione was found to decrease after participants spent three days on a lower protein diet than what they were used to, but it appeared to return to normal by day ten (Jackson et al., 2004).

Eating brassicas could help the estrogen metabolizing pathways to lead to less of the dangerous metabolite (16α-hydroxyestrone) with the safer 2-hydroxyestrone being produced instead (Fowke et al., 2000). Dietary fiber could also be beneficial to help manage estrogen levels, in that it might reduce enterohepatic recirculation by binding to the estrogen in the gut and transporting it out of the body (Monroe et al., 2007).

References:

Fowke, J. H., Longcope, C., & Hebert, J. R. (2000). Brassica vegetable consumption shifts estrogen metabolism in healthy postmenopausal women. Cancer Epidemiology, Biomarkers & Prevention : A Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology, 9(8), 773–779. 

Jackson, A. A., Gibson, N. R., Lu, Y., & Jahoor, F. (2004). Synthesis of erythrocyte glutathione in healthy adults consuming the safe amount of dietary protein. The American Journal of Clinical Nutrition, 80(1), 101–107. 

Monroe, K. R., Murphy, S. P., Henderson, B. E., Kolonel, L. N., Stanczyk, F. Z., Adlercreutz, H., & Pike, M. C. (2007). Dietary fiber intake and endogenous serum hormone levels in naturally postmenopausal Mexican American women: the Multiethnic Cohort Study. Nutrition and Cancer, 58(2), 127–135.