I am very surprised if it really is “only beef” that is tolerable. I would expect mutton and lamb at least, to be tolerable as well. I read somewhere years ago that sheep meat is one of the foods that is most often able to be tolerated by people with hypersensitivities. Even more so than beef.

I have fibromyalgia, and a very low-carb diet certainly did wonders for me. But along with other self-help strategies. I wonder if Miss Peterson would make an even more spectacular recovery and perhaps gain greater tolerance to a wider range of foods, if she discovered some additional strategies?

With my fibromyalgia, one particular self-help approach was crucial; many other things I was trying, became beneficial once I added the crucial one: the right kind and dose of daily exercise. Too little, and I got worse; pushing myself too hard, and I got worse. I believe that everyone I have encountered who has made a recovery from fibromyalgia, has been doing the right kind of exercise in the right doses. Even if they are only doing this by accident, and don’t even credit it with their recovery. I ask people who have made a recovery, and attribute it to some drug or some hands-on therapy or whatever — what exercise are you doing? And they are always doing something regularly, that is moderate intensity and more oriented to mobility than to strength or “fitness”. I always say that this, for some reason, is what “unblocked” the channels that allow other treatments to work. Or to rephrase this, insufficient activity blocks those channels, but so does excessive intensity and / or load.

I don’t claim anything for the effectiveness of this approach for anything other than fibromyalgia, but it might be worth a try for any mysterious chronic pain condition.