Excessive sugar intake can have profound health impacts, including increased risk for obesity, diabetes, and heart disease. Diets high in sugar are linked to weight gain due to the high calorie count without nutritional benefits. Additionally, excessive sugar can lead to insulin resistance, increasing the risk of type 2 diabetes. Furthermore, high sugar consumption is associated with poor dental health, risk of fatty liver disease, and increased triglycerides. Limiting added sugars and focusing on whole foods can significantly alleviate these health risks and promote better long-term health outcomes.