Maybe it's half of what you eat, but I've been "allergic" to nightshades my whole life and never felt lacking in options (I have a mast cell disorder, tomatos, potatoes etc cause anaphylaxis, it's not a true allergy, but it functions like one)

I can eat practically anything, it's only like 20 plants I'm allergic to out of like 700 I have available to me. And if I travelled overseas I'd find more stuff I could safely eat there too.

I just can't eat much pre-made, packaged organic convenience foods. Most will contain potato starch, unmarked dextrose, "spices" (if it's not specific in the ingredients list, often I avoid), etc

Even desserts aren't safe because e160c, paprika, is what most companies here used when they swapped out the red dye 40.

So I cook from scratch, but I've never felt limited in my own kitchen because of the ingredients I have. (I am limited at restaurants, I usually order a black coffee and enjoy my dining friend's company)

I also don't live in the America's, so that helps. I can see why they would think nightshades are everything, all the best foods from the Americas start with tomato, or capsicums, and potato is a staple carb. Meanwhile my cultural diet is based on brassicas and oats.

But at the end of the day, Beans and rice is nightshade free, it doesn't take a genius to think of a non-nightshade vegetable to add to the mix to make a unique meal.

Well it is a spiritual journey, you don’t need to sin on food.

It is now, but it wasn't until the Columbian Exchange. Eggplant is the only edible nightshade variety from the eastern continents, the rest being native to South and Central America.