Diet Pepsi's move to replace its artificial sweetener -- from aspartame to sucralose -- in August has prompted a flurry of negative comments online from customers who aren't big fans of the new taste, but it's not the first time a soda company has taken a risk by making a change to its recipe.
Aspartame, also found in NutraSweet and Equal, has been a source of controversy, even though studies have yet to link the artificial sweetener to negative health effects in humans.
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