General rules:
Exceptions may be made at the discretion of the mods.
I 100% don’t care, my American junk peanut butter is delicious. That health food shit you have to stir is oily, greasy, often has weird dry spots and grit, no thanks. I’ll keep enjoying my smooth, sweet and satisfying American junk peanut butter with out shame
Even the ultra sweet stuff is 2-3g of sugar per serving so it’s still pretty healthy
...are non-US peanut butters less viscous?
Non-US peanut butters typically have only one ingredient (peanuts) and therefore you get peanut oil separating out that needs to be stirred in. American peanut butter (at least the 'popular' brands) tend to be so full of preservatives and shit that they hold their state.
Here's the full list of ingredients for Jif:
Made from Roasted Peanuts and Sugar, Contains 2% or Less of: Molasses, Fully Hydrogenated Vegetable Oils (Rapeseed and Soybean), Mono and Diglycerides, Salt.
https://www.foodsco.net/p/jif-creamy-peanut-butter/0005150024191
It's not just peanuts but it's not really "preservatives and shit" either.
The vegetable oils are saturated fats, which will mix with the peanut oil, but solidify at room temperature. That and the sugar are doing the leg work on keeping the peanut butter from separating. So yeah, saturated fats and sugar are unhealthy additives specifically for preserving the peanut butter. What exactly is your definition of a preservative?
Preservative refers to a substance that inhibits spoilage, decay, discoloration or other drops in quality.
It's one way to increase shelf life.
A stabilizer isn't a preservative because oil separation doesn't impact quality, shelf life or anything like that.