Hi Bret & Tony. Some good points about invivo and invitro. I was going to leave a similar comment on that subject. It's all about HOW MUCH of the active ingredient get to the cancer cells after digestion (in vivo) and not just how well in works on cancer cells in a petri dish (in vitro). Obviously this is why bioavailability is so important, although that is probably only a part of what determines how much of the active ingredient reaches cancer cells in the body.
Not sure if you, or DQ (aka Tony Isaacs) could tell me, but I'm wondering if black rasberry juice could (like Linus Pauling's intravenous vitamin C) be injected directly into the bloodstream. How safe would this be and how affective (theoretically) would this be against cancer cells. Would it have to be dilluted to be safe to inject it directly into the bloodstream? Could the active inredient(s) in black rasberries be effectively isolated and then injected safely and effectively?
These are some of the questions we should be asking. Not just of black rasberries, but of all plant based anti-cancer agents. This should be done in mouse trials instead of adding it to diet alone. You could have 3 trial groups, one eating it raw and natural, one injtecting it, and one placebo group.
If vitamin C (ascorbic acid) works better to treat cancer via intavenous injection/drip, as opposed to oral supplements of Vitamin C, then surely we should investigate the same intravenous methods of delivery as a potential superior method with ALL other plant based, natural medicines in alternative cancer therapies.