(14-09-2014, 10:23 AM)spanky Wrote: I have seen a couple of warnings about potential harm from extended consumption of black walnut.

http://wellnessmama.com/257/black-walnut-hull-herb-profile/

https://www.mountainroseherbs.com/products/walnut-leaf/profile

http://www.starwest-botanicals.com/category/black-walnut-leaf-extract-organic/?utm_source=froogle&utm_medium=feed&gclid=CMqChrew4MACFSgV7AodOBIAxQ

I believe their talking about English walnut "leaves", Leaves of the walnut tree contain progesterone, the female sex hormone, discovered for the first time in a plant.


What's the Difference Between English Walnuts and Black Walnuts?
http://www.seriouseats.com/2011/04/what-are-english-walnuts-vs-black-walnuts-differences-nuts.html


Scientists previously identified progesterone-like substances in plants and speculated that the hormone itself could exist in plants. But researchers had not found the actual hormone in plants until now. Pauli and colleagues used two powerful laboratory techniques, nuclear magnetic resonance and mass spectroscopy, to detect progesterone in leaves of the Common Walnut, or English Walnut, tree. They also identified five new progesterone-related steroids in a plant belonging to the buttercup family.


Genus of the buttercup family (Ranunculaceae)

Nigella
Cimicifuga (cohosh)
Paeonia (peony)- an older classification

Leaves of the walnut tree contain progesterone, the female sex hormone, discovered for the first time in a plant.