A doctor has suggested that complementary medicines can really help depression.
Speaking to the Daily Mail, professor George Lewith said that he will "happily continue recommending" St John's Wort to his patients.
This is despite the fact that a recent study conducted by the Global Neuroscience Initiative Foundation found that other treatments, such as passion flower extracts, could be more beneficial to patients.
But the professor, who has been working in complementary medicine for a number of years, said that he could cite various studies which found St John's Wort to be effective in treating the condition.
He told the paper: "I will carry on recommending this herb because it's much kinder to patients.
"It's very well tolerated, with most patients seeing fast results, with few side-effects and fewer withdrawal symptoms."
The substance is most effective when used on a daily basis for at least six months, the health professional added.