Never again do I want to hear how hard it is to do an elimination diet. If you think you have a natural right to happy and content and eat whatever you want without consequence, of course it will be hard. If you see life as a series of challenges to be met, and see that every food has consequences, it will be easier. And in fact, I find eliminating certain foods easier than eating them in moderation. My recent bike accident has left me unable to chew and with limited use of my right arm. (I'm right handed.) I can't eat wheat or carrageenan, can't tolerate more than a little dairy, and can't tolerate a high-carb diet. That leaves me with a low-carb, high fat (LCHF) diet of soft foods. So far, it's been a minor challenge. No, that's not an understatement, and no, I haven't had any protein shakes. I'm snooty as a Frenchman about food. To live on a soft LCHF diet of real food, you'll need a food processor with a motor powerful enough to puree meat.
Do-it-yourself health. Low-carb, mostly evolutionary.