In the US, the FDA regulates things that make specific medical claims, such as “[reduces the risk of heart attack](https://www.webmd.com/food-recipes/news/20090513/fda-warns-on-cheerios-health-claims)” or “makes your pp bigger.”
So, instead these products just make general claims alluding to “wellness” or “male enhancement.”
Basically, if they don’t advertise like they are *treating a specific medical condition*, they can say whatever they like. Until they run afoul of the FTC, but that’s not very common.
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