I've been using DE daily for probably 6 months now and I can attest to the fact that it does not hurt your intestines. I have VERY sensitive intestine mucous membranes due to the fact that I'm fighting a very large fish Tapeworm and the toxin load due to taking Wormwood combos and bromelain is really high. I've seen long slices of Tapeworm pieces after using it so I do know it works but not as fast on really large tapeworms, at least not for me. I continue to take it daily mixed in my morning oatmeal. Since I take bromelain and zymex II on an empty stomach I don't notice as much since I think most stuff is getting digested. I would highly recommend DE. It is so easy to mix into things....just make sure you don't inhale the dusty powder; not good for your lungs!