How can something have no calories? What does the body do with this calorie free food?
In: Biology
It’s also worth noting that a lot of “zero calorie” foods can actually have a non-trivial amount of calories.
[According to the FDA](https://www.fdareader.com/blog/2018/12/13/product-claims) (but I believe many other countries have similar regulations), if one “serving” of a food product has less than 5 calories, then you can label it as “zero calories” or “calorie-free” etc.
However, you might note that depends on the serving size. Any food product can be less than 5 calories if you eat a small enough portion of it. And indeed, some food companies do that: [Splenda packets contain as much calories as pure sugar, which is 4 calories per 1 gram](https://www.youtube.com/watch?v=EN6COaYLS_A), and surprise surprise, each packet of Splenda contains one gram, and thus can be labeled as “calorie-free”. Likewise, [Tic Tacs are almost pure sugar, but since one serving (i.e. a single Tic Tac, 0.49g) contains less than 0.5g sugar, they are allowed to be labeled as “sugar-free”](https://commonplacefacts.wordpress.com/2019/07/22/if-tic-tacs-contain-94-5-sugar-why-are-they-labeled-as-sugar-free/).
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