Excessive sugar consumption can have detrimental effects on overall health and fitness. High sugar intake is linked to weight gain, insulin resistance, and an increased risk of type 2 diabetes. It can lead to fatty liver disease and negatively impact heart health. Moreover, sugar provides empty calories that can impede progress in fitness goals by reducing energy levels and increasing cravings. To maintain optimal health and performance, it's essential to limit added sugars and focus on a balanced diet rich in whole foods and nutrients.