Turning Sour to Sweet: Miracle Berry Restores Chemo Patients' Taste

A West African fruit known as miracle berry, containing the glycoprotein miraculin, temporarily makes sour foods taste sweet and can help chemo patients overcome a metallic, metallic-tasting mouth (chemo mouth) for about 30–40 minutes, allowing meals to be enjoyed again. While not a cancer treatment, the berry can restore appetite and flavor perception; it’s commonly grown in Florida, sold in freeze-dried form, and even available on Amazon.