I think there are lots of different elimination diets. Years ago I was seeing a Chinese Medicine/Accupuncture doctor and for 8 weeks I followed his: I could only eat brown rice, steamed veggies, hard-boiled eggs, bananas, canned pineapple, pinto beans that I cooked, and a little chicken breast meat. All I drank was water. My IBS was helped by this, and I lost about 12 pounds, even though I could eat as much of this food as I wanted.
It didn't do anything for my fibro, though.
Diagnosed: Fibromyalgia, Meniere's, elevated liver enzymes, skin grafting on back, arthritis, scoliosis, lumbar disc damage, sciatica, IBS, migraine headaches, tachycardia, skin cancer surgeries on face
Meds: Nortriptyline, Clonazepam, Darvocet as needed
Multivitamins, l-lysine, probiotics, magnesium, malic acid, calcium + vit. D, vit. C
Be yourself. Everyone else is already taken.