Refined sugars can significantly impact energy levels by causing rapid spikes and subsequent crashes in blood sugar. Foods high in refined sugars, such as candies, baked goods, and sugary beverages, can provide a quick source of energy; however, this is often followed by a sudden drop in energy, leading to feelings of fatigue and irritability. Over time, excessive consumption can contribute to weight gain, insulin resistance, and increase the risk of chronic diseases. To maintain consistent energy levels, it is advisable to limit refined sugar intake and focus on whole foods that provide stable energy sources.