People who had recently taken antibiotics were low converters (as were people who had mechanical bowel cleansing, which doesnt sound pleasant).[ref] The absorption of sulforaphane (glucosinolates already converted by myrosinase) is fairly high in the 70-90% range
Liver-Supporting Nutrients Foods rich in sulfur like garlic, onions, and cruciferous veggies help replenish glutathione
Antioxidants (Basel, Switzerland) , 10(9), 1377
HanXXuBBeeversCSOdakaYChenLLiuLet al
Combining Glutathione and Zinc Now that we understand the individual benefits of glutathione and zinc, lets explore whether these two nutrients can be taken together and the potential advantages of doing so
Rosenbaum et al., 2006), because it exhibits catalytic properties similar to those of noble metals (Levy and Boudart, 1973)