Aspartame brings nothing new to our diet - that's why we can be confident that it is a safe and beneficial sweetening ingredient.
In the Opinion issued following the last EU review of the science which supports understanding of the metabolism and safety of aspartame, the Scientific Committee on Food (EFSA's predecessor) stated:
"Aspartame is unique among the intense sweeteners in that the intake of its component parts can be compared with intakes of the same substances from natural foods. It is clear that the consumption of aspartame represents only a minor source of aspartic acid, phenylalanine or methanol in the diet".
SCF Opinion 2002

The facts about aspartame's composition and metabolism are not in question.
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Aspartame has a role in the diet of diabetics; aspartame does not increase blood glucose or insulin levels.
Low calorie sweeteners, and specifically aspartame, have been shown to be helpful in reducing energy intake, a consideration for all of us who wish to maintain or lose weight. For people with diabetes, aspartame can play an important role in a healthy regime, as it provides the sweet taste that people enjoy without impacting blood glucose or insulin levels.
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AminoSweet aspartame is the low calorie sweetener that tastes just like sugar. It is made from two building blocks of protein just like those found naturally in many everyday foods. Aspartame is digested by the body in exactly the same way as these other protein foods and so does not bring anything new to our diet.
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