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The US government has thrown its weight behind claims that cannabis kills cancer cells.

This is coming after conspiracy theorists and creditable scientists have previously argued that smoking or ingesting the herb can have medicinal benefits.

Read: People can now grow weed in their home garden as senate approves new bill

Health researchers for the US government claim that cannabinoids - the active ingredients in cannabis - can inhibit the illness by causing cell death and blocking key blood vessels needed by tumours to grow.

Already researchers have proven that key chemical ingredients in marijuana were found effective in fighting against colon cancer, liver cancer, breast cancer and several other forms of the disease.

Read: 5 US students hospitalized after smoking 'artificial cannabis'

It was also suggested that cannabinoids can boost the effectiveness of chemotherapy - without any of the nasty side effects.

It is also said that case studies in mice and rats show cannabinoids may be able to kill cancer cells - while still protecting normal cells.

A health researcher on the US government's Cancer.org website claimed: "Studies in mice and rats have shown that cannabinoids may inhibit tumor growth by causing cell death, blocking cell growth, and blocking the development of blood vessels needed by tumors to grow. Laboratory and animal studies have shown that cannabinoids may be able to kill cancer cells while protecting normal cells.

"A study in mice showed that cannabinoids may protect against inflammation of the colon and may have potential in reducing the risk of colon cancer, and possibly in its treatment.

"A laboratory study of delta-9-THC in hepatocellular carcinoma (liver cancer) cells showed that it damaged or killed the cancer cells. The same study of delta-9-THC in mouse models of liver cancer showed that it had antitumor effects."

Cancer kills up to 20,000 people worldwide every day, according to global health estimates.

Should Cannabis be legalized or not?»

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