"Oh my god!" - That was the reaction we got from transportation reporter Alex Davies when he bit into a lime 15 minutes after taking a Miracle Berry tablet.
The tablet, also known as mBerry, consists of powder from a West African fruit called Synsepalum dulcificum, or miracle fruit. When consumed, the berry alters your taste buds in a way that sour foods become extremely sweet.
It's a truly mind-boggling experience. Watch and see for yourself how it all works.
Produced by Will Wei. Additional camera by Justin Gmoser.
Music: "Guilty Pleasures" by Igor Dvorkin, Duncan Pittock, & Ellie Kidd