I don't see any reason why you couldn't take this at the same time as the modern herbalist. The only reason I might hold off on doing so, is if you are already experiencing some heavy-ish detox from the modern herbalists' protocol. Adding this product could make it really intense, if you are already feeling not so hot. I am not feeling bad at ALL, but have been on some kind of candida diet/candida cleanse for a WICKED long time. That said I am ALREADY seeing evidence of a lot of candida blobs/clumps literally falling out of my body. It's pretty gross actually, but better OUT than in! Will keep you posted on my progress.