Yes it's a great elimination diet but there is a growing community that just stay on it as a lifestyle because you could feel so good.
Turns out animal-based food has all the nutrients you need if you include offal like liver (a serving of liver has more vitamin C than an apple). I ate mostly Ribeyes and liver. Sometimes I had yogurt but if you're eliminating to find allergens I would cut dairy at first.
I recommend this book https://www.amazon.com/dp/1734640707/ref=cm_sw_r_cp_apa_i_jp...