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Insight and Health

A variety of CBD health products are in the shops - do they work?

A component in cannabis called CBD is claimed to help everything from Alzheimer's to anxiety. Despite a boom in sales, there's little evidence supporting the claims

By Jessica Hamzelou

14 August 2019

Âé¶¹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Cannabis plants contain many different chemicals, including CBD

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“IT WILL cure, eliminate or definitely help any disease,” an assistant in a shop just around the corner from Âé¶¹´«Ã½’s office in London tells me. Although these extraordinary claims aren’t made on the product’s packaging, the substance it contains is quickly gaining a reputation among consumers as a cure-all. Pain, anxiety, depression, cancer, psoriasis, Alzheimer’s, irritable bowel syndrome – you name it, someone somewhere is saying this substance will help.

This apparently miraculous compound is cannabidiol, better known as CBD, a component of cannabis. Growing health claims coupled with a…

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