Signs indicating a need for a diet change may include persistent fatigue, weight fluctuations, and digestive issues. If an individual experiences decreased energy levels or frequent cravings, it may signal an imbalance in nutritional intake. Moreover, unexplained weight gain or loss often highlights a need to reevaluate food choices. Additionally, frequent illnesses or prolonged recovery times can indicate poor nutrition affecting the immune system. Recognizing these signs is essential for making appropriate dietary adjustments, leading to better health outcomes and enhanced physical performance.