Signs of nutrient excess include symptoms such as fatigue, digestive issues, and increased risk of chronic conditions. For example, excessive vitamin A can lead to skin changes and bone pain, while too much iron can cause organ damage. High intakes of certain fats can contribute to cardiovascular diseases. Additionally, individuals may experience hormonal imbalances from excess carbohydrates or sugars, leading to cravings and weight gain. It is essential for individuals to monitor their diets and consult with healthcare professionals to recognize and address any potential nutrient imbalances.