The miracle berry or its product contains a unique glycoprotein called miraculin that inhibits the tongues perception of sour flavors. When the miracle berry product is consumed, the miraculin in the berry binds to the taste buds on the tongue. The miraculin on a persons tongue then causes the sweet receptors on their taste buds to identify sour food or drink as sweet. For example; a lemon suddenly tastes like lemonade. Cheese tastes like frosting, and vinegar tastes like apple juice (The miraculin rewires the sweet receptors to temporarily identify acids as sugars). For up to an hour all bitter and sour flavors will be masked and everything consumed will taste sweet.