yes sugar is addictive. I don't smoke, do substances, drink alcohol or even drink coffee. I'm absolutely clean except with sugar/sweets. sugar got me in a serious chokehold. I can actually sympathize with people addicted to substances cuz I feel like an addiction to sugar is similar. It's difficult to cut/decrease and you think you never will be able to.Sugar is just as addictive as cigarettes or alcohol. It’s so hard to make that transition into a healthier lifestyle but with a healthy lifestyle you can weaken the cravings to suger.