Reducing added sugars in the diet can support overall fitness by decreasing the risk of weight gain, often linked to excessive calorie intake. High sugar consumption can lead to energy spikes followed by crashes, negatively impacting workout performance. By cutting back on sugars, individuals can stabilize their energy levels, resulting in improved exercise consistency and effectiveness. Furthermore, less sugar intake can enhance overall health by reducing the risk of chronic conditions such as diabetes and heart disease, ultimately supporting fitness goals.