What, if anything, actually is going on with mushroom-based drinks? Is this all a bunch of hooey or do mushroom coffees really work?

Can you imagine a cup of coffee that not only wakes you up but also gives you an extra boost of energy and nutrients? Well, ...

have grown a business out of other companies' trash. They manufacture grow-at-home oyster mushroom kits filled with used coffee grounds. WSJ's Lauren Rudser reports.

Starting the morning with a mushroom mocha might not sound that tempting, but could the suddenly fashionable drink be the key to a less stressful day? That's what some enthusiasts are claiming.