Aspartame is one of the most thoroughly studies ingredients in the world.

Aspartame helps make a calorie-controlled diet more palatable, which can help support adherence to long-term weight maintenance.

Dr. Bernadene Magnuson

Aspartame has been used by hundreds of millions of consumers around the world for more than 30 years.

Aspartame is a low-calorie sweetener that is 180 to 200 times sweeter than table sugar, which means its sweet taste comes with few, if any, calories. It is permitted for use in more than 100 countries and is used in more than 6,000 food and beverage products around the world. Aspartame is composed of two common amino acids, aspartic acid and phenylalanine. Both of these amino acids are found in protein-containing foods, including eggs, meat, fish, cheese, dairy products and nuts.

Aspartame is one of the most thoroughly researched food ingredients in use today, with more than 200 studies to support its safety. The safety of aspartame has been assessed and recognized by the US Food and Drug Administration (FDA) and numerous other national and international organizations including the FAO/WHO Committee of Experts on Food Additives (JECFA) and, at EU level, by the European Food Safety Authority (EFSA). In 2013, EFSA reaffirmed the safety of aspartame, following the “most comprehensive review of aspartame that has ever been undertaken.”

Foods and beverages sweetened with aspartame can be a useful option for people wanting to manage their calorie or carbohydrate intake without sacrificing taste. A large and growing body of evidence has shown that aspartame does not increase appetite or food intake, and when used consistently to reduce calories, aspartame can help with weight management. But, it’s also clear that healthy weight management requires more than just using aspartame. [Learn about energy balance]

More on aspartame composition, metabolism and safety and aspartame and weight management