Researchers have been studying curcumin as a beneficial herb in cancer treatment. It can affect cancer growth, development and spread at the molecular level. Studies have exposed that it can decrease angiogenesis (growth of new blood vessels in tumors), metastasis (spread of cancer), as well as funding to the death of cancerous cells. Multiple studies have revealed that curcumin can decrease the growth of cancerous cells in the laboratory and inhibit the growth of tumors in test animals.