What's the deal with artificial sweeteners?

This week, Emily and Perry dive into the sweet, calorie-free world of artificial sweeteners. What poor lab hygiene brought them into existence? Do they actually make us fatter and/or cause cancer? What regulatory shenanigans got us so scared of aspertame? And, most importantly, why is Diet Coke seriously so good?

Plus: an outbreak of Legionnaires' disease in New York, hot beverages and esophageal cancer, and a frightening new opioid has entered the chat. 

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