1. High sugar intake can lead to weight gain and obesity which in turn increases the risk of developing various health conditions such as type 2 diabetes, heart disease, and certain cancers. 2. Consuming sugary foods and drinks can cause fluctuations in blood sugar levels, leading to energy crashes and cravings for more sugary foods. 3. Sugar has been found to have a negative impact on dental health, as it can contribute to the formation of cavities and tooth decay. 4. Excessive sugar consumption has been linked to an increased risk of developing non-alcoholic fatty liver disease, which can lead to liver damage and other complications.