what exactly is this ingredient?
It is an artificial non-saccharide sweetener 200 times sweeter than sucrose.
Aspartame
Aspartame is an artificial non-saccharide sweetener 200 times sweeter than sucrose, and is commonly used as a sugar substitute in foods and beverages. 
when did taylor swift became a pop singer In the year 2004, at the age of 14. what was her debut album called? "Taylor Swift" when was it released? October 24, 2006 what are some products she has endorsed? Diet Coke, Keds sneakers, Instax camera, to name a few. what is the first product mentioned here? It is a sugar-free and no-calorie soft drink. which company manufactures it? The Coca-Cola Company what are the ingredients in this drink? One of the ingredient was aspartame.
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Aspartame [SEP] Introduction
Aspartame is an artificial non-saccharide sweetener 200 times sweeter than sucrose, and is commonly used as a sugar substitute in foods and beverages. It is a methyl ester of the aspartic acid/phenylalanine dipeptide with the trade names "NutraSweet", "Equal", and "Canderel". Aspartame was first made in 1965 and approved for use in food products by the U.S. Food and Drug Administration (FDA) in 1981. Aspartame is one of the most rigorously tested food ingredients. Reviews by over 100 governmental regulatory bodies found the ingredient safe for consumption at current levels. As of 2018, several reviews of clinical trials showed that using aspartame in place of sugar reduces calorie intake and body weight in adults and children.