Miracle berry is a plant known for its berries. When the berry is eaten, it causes sour foods (such as lemons and limes) to become
sweet after eating. The berry itself is low in sugar and has a mild sweetness. It contains a glycoprotein molecule with some
trailing carbohydrate chains called miracle protein. When the fleshy part of the fruit is eaten, this molecule binds to the taste
buds of the tongue, making the sour food taste sweet.