Glutamate, often called MSG, is the umami molecule that gives processed food its irresistible flavor. But research shows it does far more than enhance taste. While glutamate is a key player in our experience of pleasure and reward, it also signals inflammation and triggers the body's immune system. Most glutamate in packaged foods is created during manufacturing and thus never appears on labels, yet it plays a hidden role in chronic inflammation.Biochemist Katherine Reid uncovered this connection while searching for answers to her young daughter's health challenges. Her investigation revealed how glutamate is linked to conditions such as obesity, diabetes, autism, addiction, depression, and cancer. Drawing on decades of research and today's cutting-edge science, she explains how this overlooked molecule affects the body and offers practical steps to reduce exposure and protect your health.This book shines a light on the science behind processed food and its impact on well-being---empowering readers with knowledge and actionable solutions.