Thank you all so much for replying. My brother had to start his new chemo treatment today because the tumors are growing to fast. His cat scan at the end of May showed shrinkage, but the beginning of July he started feeling bad again and his tumors have now grown. We are still working on alternatives along with chemo. He needed time to get him all of the supplements he needs. I bought him an Organic First Cleanse for his whole body.Should this be ok to use while on chemo? I also bought 100% Organic Acai Juice.