HERB - Sassafrass

[Keith E. Brandt, M.D.]

>I have some warnings about using sassafrass root bark in
>large quantities or for long periods.  Does anyone on this
>list know what these warnings are about.  Isn't this what
>root beer was made from originally?

In the early 1960s, safrole (a volatile oil that is the majority of what
gives sassafras it's characteristic flavor) was discovered to be
carcinogenic in rats and mice. In it's infinite wisdom to protect American
rats and mice, the FDA banned sassafras bark, sassafras oil, and safrole
from use as flavors or food additives. Supposedly, 200 mg of safrole can be
present in a strong 8 oz cup of sassafras tea. This is about 4 times the
minimal amount believed to be hazardous to humans if consumed on a "regular
basis". A study done in Switzerland in 1977 failed to show the formation of
the primary carcinogenic metabolite in humans, so there is at least some
question if the rodent studies can be extrapolated to humans. 

I have seen products labeled as "safrole-free", but have not tried these
preparations and cannot speak to their flavor (or lack thereof). 

And yes, sassafras has been used as a flavoring for root beer. 



 
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