Bindweed is a common weed and a problem for many farmers. The weed damages crops by wrapping itself around plants such as corn and wheat. Growing all over the world, it is sometimes ironically called "the cancer of weeds". The proteoglycan mixture (PGM) found in bindweed has tested 100 times more effective at preventing new blood vessel growth than shark cartilage by weight. This testing was done in chicken egg chorioallantoic membranes and was effective in a dose-dependent manner. In addition to its angiogenesis inhibiting properties, PGM is also a mild immune stimulator. Other researchers have found that the combination of angiogenesis inhibitors plus immune system stimulants hasten the process of tumor shrinkage.
While there have been many testimonies regarding cancer improvements or remissions with bindweed, to our knowledge there have been no human trials completed yet.

Suggested doses are 250mg capsules, at 4 to 6 per day. No toxicity has been noted at these doses - concentrations that inhibit tumor growth.