There is no "think". It is. Research points it out as a carcinogen. As well, since aspartame is not real sugar, your body digests it differently, and since it is a no calorie sweetener, your body can't use it for energy because it has no nutritional value and is useless. It literally passes through you mostly unchanged. As well, since it is not a carbohydrate, there is no "tricking" your body into thinking it has eaten carbs. Using this will simply increase cravings for carb rich foods (because you aren't eating carbs which are a vital source of energy for your body. Look up how ATP is made and why it is important). This can lead to unhealthy carb choices, like donuts and sweets, instead of complex (read as "healthy") carb choices like sweet potatoes and carrots. It is best to just not eat this stuff and opt for natural sweeteners.