Actually there are many places that sell health food. I used to go to a 45 year old amish health food store inSome parts of the country can be very rural. Just two years ago, I drove through central PA on my way to Pittsburgh, and I can say with a high degree of confidence that there wasn't a single block of tofu for 500 miles.
Bird-in-hand PA, called, Millers. Highly recommended, lots of bulk items refrigerated. I miss it.