Ways to boost energy levels include increasing magnesium levels, drinking more water and less alcohol, and eating more grains and less sugar. Eating sweet foods causes a spike in sugar levels and an initial energy burst, but a drop in sugar and energy levels follows.
Slight dehydration can reduce energy levels, so a tall, cool glass of water can help provide an energy burst, WebMD notes. Eating a balanced diet with foods high in vitamins and minerals provides energy. Food such as fish; whole grains, such as bran cereal; and nuts, such as almonds or cashews, can help boost energy levels.