Based on this research, some people—or perhaps many people—simply can’t have just a little sugar. Due to their addiction to sugar, these individuals are repeatedly unsuccessful when they try moderation, according to Avena, coauthor of Why Diets Fail (Because You’re Addicted to Sugar). Just like alcoholics must completely avoid alcohol, these individuals need to completely avoid simple sugars, including natural sweeteners such as agave nectar and honey, and greatly reduce all complex carbohydrates, such as bread, cereals, and pasta, that are quickly converted to sugar. Here’s what you can do now to stop cravings and kick your sugar addition.