alt Hacker News> And you can't call it "olive oil" if it has 2% olive oil.
Which is still way too lax. It should only be called olive oil when it's 100% olive oil. You can pick some other name like "olive oil based" or "unholy mixture of the cheapest gutter oils we could find" which clearly indicates that what you are selling is in fact a combination of oils.
I forgot to mention, my bad, I used some random numbers. The EU "nutrition claims" numbers are here [1]. If you want to claim "less salt" then it must contain at least 25% less. For most other ingredients it's 30%, so you can't advertise "less X" forever because you reduce 1 nanogram at at time.
For olive oil you can find the details here [2]. As above, there's no such thing as "the olive oil part was olive oil". The label is for the product.
The US probably has something similar, even if watered down.
[1] https://food.ec.europa.eu/food-safety/labelling-and-nutritio...
[2] https://agriculture.ec.europa.eu/farming/crops/olive-oil_en