17 May 2023 --- The World Health Organization (WHO) has stated long-term use of non-sugar sweeteners (NSS) does not have long-term benefits in reducing body weight and may have undesirable effects, such as the risk of type 2 diabetes, cardiovascular diseases and premature mortality in adults. However, some experts find the supporting evidence insufficient. “What we hope to achieve with this guideline and other existing and forthcoming guidelines on healthy diets is an overall improvement of dietary quality,” Jason Montez, a scientist in the Department of Nutrition and Food Safety at the WHO, tells NutritionInsight.