Signs and symptoms of an unhealthy diet may manifest as fatigue, frequent illness, or significant weight variation. Individuals may also experience digestive issues, such as constipation or bloating, as well as skin problems, indicating nutrient deficiencies. Cravings for sugary or processed foods can suggest an imbalance or inadequate nutrient intake. Further, mental signs may include mood swings or irritability, often linked to poor nutrition. It's essential to evaluate dietary habits regularly and recognize these symptoms as cues to improve one’s overall nutrition and well-being. Adopting a more balanced diet can help alleviate these issues and enhance health.