It’s better to eat small meals and snacks every few hours than three large meals a day. This approach can reduce your perception of fatigue because your brain needs a steady supply of nutrients.
Eating foods with a low glycemic index — whose sugars are absorbed slowly — may help you avoid the lag in energy that typically occurs after eating quickly absorbed sugars or refined starches. Foods with a low glycemic index include whole grains, high-fibre vegetables, nuts, and healthy oils such as olive oil. In general, high-carbohydrate foods have the highest glycemic indexes.