Data Views Plants (>= 1 Chemical): 429 All Chemicals: 2 CSV Excel PDF Click on column headings to sort table by that column Chemical Dosage References GLYCYRRHIZIN 40-80 mg/man/day/shortterm* ZINC --* *Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.