The Smoothie Diet is a 21-day digital weight loss program designed to rapidly shed pounds by strategically replacing daily meals with nutrient-dense smoothies. Created by health coach Drew Sgoutas, the program’s core function is to generate a significant calorie deficit, which is the key mechanism for quick weight reduction. Participants are instructed to replace two of their three main daily meals with custom-designed smoothie recipes. These smoothies are packed with a specific balance of fruits, vegetables, proteins, and fibers. The high fiber content is crucial as it helps promote satiety and aims to curb cravings for processed and sugary foods. In addition to the two liquid meals, the plan allows for one solid, whole-food meal and two permitted snacks per day, ensuring some nutritional balance. The program also focuses on "resetting" the palate over the three weeks, making it easier for users to choose healthier, less-processed foods afterward. Essentially, it leverages liquid nutrition for caloric control and aims to boost metabolism, leading to faster initial weight loss results.