The word "fungi" may conjure up some unpleasant images, but don't be put off - mushrooms are vital for our health.They are packed with disease-fighting properties, antioxidants and many other important nutrients. What's more, with prescriptions for antidepressants sharply rising since the pandemic, some scientists are claiming the active ingredient in so-called magic mushrooms (currently illegal in the UK) could offer a promising treatment for depression in the future.