Changes in diet can significantly improve energy levels by promoting stable blood sugar levels and providing essential nutrients. Incorporating whole foods, such as fruits, vegetables, whole grains, and lean proteins, can enhance nutrient intake while reducing reliance on processed foods that may cause energy fluctuations. Consuming healthy fats can also aid in sustained energy. Staying hydrated is another crucial aspect, as dehydration can lead to fatigue. Overall, a balanced diet supports sustained energy throughout the day.