this chart gives cysteine parts per million by plant part for certain plants
high in cysteine:  appears sunflower seeds would nicely shut down that
homocystein pathway. (and Vitamin B6 also dissipates homocystein, doesn't it?).

http://www.ars-grin.gov/cgi-bin/duke/highchem.pl

The home page http://www.ars-grin.gov/duke/
allows searches by chemical, activity, or plant.

I love this site!
Katy
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Amadeus said:
So again: not limiting methionine, just supplying enough of cysteine should
shut down the homocysteine pathway