TIL that food companies can mark a product as zero calories if a single serving contains less than 5 calories

https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=101.9&SearchTerm=nutrition%20label#:~:text=(1)%20%22Calories%2C%20total,may%20be%20expressed%20as%20zero.
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1gdq14j/til_that_food_companies_can_mark_a_product_as/