Do Diet Coke and Coke Zero really have zero calories?

Sort of Artificial sweeteners have less than half a gram of carbohydrate are allowed to claim 'no' or 'zero' calories. But it's like the joke about broken cookies having 'no calories because they all fall out.' It's not 100% true. read more

Coke zero (and diet coke) both contain artificial sweeteners, mainly aspartame which is hundreds of times sweeter then normal sugar. What cuts the calories out is the fact this chemical isn't processed by the body. read more

Coke Zero/Diet Coke usually uses artificial sweeteners, and the most commonly used artificial sweetener is Aspartame. It is 550 times as sweet as regular sugar and goes undigested by the body. So yes, technically, it is possible for Diet Coke to have zero calories(i.e. if you discount the minutest calories in water). read more

They’re both made with aspartame, which turns into formaldehyde when it hits 86 degrees, if I remember correctly. Yes, they have zero calories. Legally, I believe they’re allowed to have less than .5 calories per serving and still say “zero calories”. But really, you’re going to burn .5 calories swallowing the stuff anyhow. read more

So yes, technically, it is possible for Diet Coke to have zero calories(i.e. if you discount the minutest calories in water). However, the purpose for ingesting food is to get energy and be able to perform work. read more