Even after a full night’s sleep, excessive sugar can cause energy crashes by spiking and dropping your blood glucose levels.

A high sugar intake can trigger a vicious cycle — the more you eat, the more your body craves it, leading to addiction-like behavior.

Sugar-packed foods are calorie-dense but nutrient-poor, making it easy to pack on pounds, especially around the belly.

Sugar causes insulin spikes, which increase oil production and inflammation — both of which are linked to acne.

Blood sugar highs and lows can mess with your mood, leaving you feeling anxious, depressed, or irritable.

Excess sugar can suppress immune system function, making you more prone to colds, infections, and slow healing.