Science on weight gain and obesity related issuesIndustry scienceIs “diet” deceptive marketing?Scientific references Aspartame, one of the world’s most popular sugar substitutes, is found in thousands of sugar-free, low-sugar and so-called “diet” drinks and foods. Yet the scientific evidence described in this fact sheet links aspartame to weight gain, increased appetite, diabetes, metabolic derangement and … Aspartame is tied to weight gain, increased appetite and obesity