Sugar consumption can significantly affect mood and energy levels. High levels of sugar intake can lead to rapid spikes and dips in blood sugar, resulting in fluctuations in energy and mood. After a sudden increase in blood sugar, the subsequent drop can cause fatigue, irritability, and brain fog. Additionally, excessive sugar consumption is linked to conditions such as anxiety and depression, potentially due to its impact on neurotransmitters and gut health. Reducing added sugars in the diet promotes more stable energy levels and can positively impact overall mood and mental well-being.