>"Starbucks is on every corner and sells plain vegetables, plain fruit, plain eggs"... if you're lucky. Usually, it's sold out fairly quickly.
I've been throughout the US, both urban and rural, and never noticed a particular issue with it being sold out. And Starbucks was just one example; there are plenty of convenience stores that sell the same. I can't remember the last time I was in a gas station or 7-Eleven that didn't have plain fruit or plain nuts available.
I've been abroad as well (mostly in Asia, though some months in Europe) and I really do not at all have the same experience as you. Eating healthily is trivial in the US. I will acknowledge that it is not actively shoved in your face (sometimes you have to specifically ask that a dish be made without sauce, for example) but I have never, ever had a problem with the availability of healthy food.
If anything, I found that eating healthily in Asia was actually more difficult because in many situations it actually is not possible to get a dish that isn't based on some type of high-sodium/sugar sauce, white rice, or noodles. (The nice thing about Asia though is that even if their dishes are full of sugar and sodium, the portion sizes are relatively small, so it isn't as big of a deal.)
I don't see plain nuts as often as I'd like in stores, but they are super easy to find online: https://www.amazon.com/s?k=raw+almonds
But Trader Joe's usually has them too. Safeway sometimes does.
It's not that it's impossible, it's just that they don't have the same "staples" status they have in Europe. Usually, you find raw nuts in the cooking/baking ingredients area, while salted & roasted are considered "party food". And they're more likely to not have the party food variety than the raw variety.
Trader Joe's has decent nuts, but their prices are not competitive when you buy in bulk.
Walnuts, in my opinion at least, don't vary in flavor that much (compared to almonds for example). So... walnuts are walnuts: always buy the cheapest! :)
> "You can, however, find packaged sugarfree yogurt" That stuff is a miracle of modern chemistry. It has, however, only a passing resemblance to actual yoghurt. Nobody who grew up in Europe really wants sugar-free. It's "no sugar added" that matters. Nobody wants fat-free, either. And there are quite a few studies making the point that these "healthy" food actually contribute to weight gain.
"Starbucks is on every corner and sells plain vegetables, plain fruit, plain eggs"... if you're lucky. Usually, it's sold out fairly quickly.
In general, yes, getting healthy food in the US is much harder than it is in Europe. The vast majority of food here is processed to within an inch of its life, and the remainder is incredibly expensive, because it's treated as a luxury good.
I've spent a few decades in Europe, as well as a few in the US. I'm fairly confident I know which food I can get where in either place - and the US is severely broken. Trust me, I wish it weren't. But healthy food is difficult, and becomes extra-hard as you leave bigger cities with specialty stores behind.