Coffee with mushrooms has been a trendy addition to the beverage aisle, but it’s worth noting that most of the health claims about this type of mushroom-infused brew haven’t been validated by scientific research. Additionally, some types of mushrooms may be hard to digest for those with a history of kidney problems or difficulty with grains. And, if you’re particularly sensitive to caffeine, consuming mushrooms in coffee might trigger an upset stomach or rapid heart rate.

The brews typically feature blends of coffee and extracts from mushrooms, including Lion’s mane, Chaga, Turkey tail and Cordyceps. The fungi are believed to provide a number of health benefits, including immune support and cognitive function.

Coffee with Mushrooms: The New Superfood Trend

One of the most prominent claims made by purveyors is that the drink reduces stress and improves sleep quality. This claim is based on the theory that the mushrooms’ adaptogenic properties reduce the amount of cortisol your body releases in response to stress. The adaptogens in the mushrooms may also help bolster your immune system, according to test-tube studies.

In addition, the lessened caffeinated kick in mushroom coffee may offer sustained energy levels without the afternoon crash that many people experience when drinking regular coffee, according to test-tube studies. As more companies begin to market the brew, however, more research on its effectiveness and interaction with other medications is needed. The current research is “limited and inconclusive,” according to the Natural Medicines database. Regardless, if you’re considering trying a mushroom coffee product, look for an organic, shade-grown blend and choose one that is free of added sugar.