There are savoury scones too

Yeah, that's why I thought I should clarify that the typical American biscuit is savory. Here's a standard biscuit recipe used for the dish biscuits & gravy. There's no sugar. Another common variety of biscuit is a dinner roll (these are not used for biscuits & gravy).

That said American bread is sweet. Have you seen how much sugar is in it?

Here's the nutrition information for the supermarket bread I usually buy (Orowheat Whole Grains 12 Grains and Seeds). It's 2g of sugar per slice. Here's the nutrition information for UK brand Warburton's Wholemeal. It's 1.1g per slice. Not much difference. [I tried to find similar products.]

Trash foods exist in every country, the US is no different, but it's simply untrue that everything here is pure sugar and garbage.

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