My functional medicine doctor ordered the test.
My worst offenders are dairy( of course) apricots, egg whites, avocado, cabbage, chili peppers, garlic, mustard seed, green tea, whey. My test gave results in 4 columns. I try to eat in the first 2 columns since those are the foods I’m less sensitive to.
I know some people believe food sensitivity test to be “quackery”. But I do know when I don’t eat the foods that I am sensitive to, I feel much better.
My granddaughters GP had her do a FS a test since she was vomiting a lot after eating. Because a mainstream doctor prescribed it, insurance paid for it. I had to pay for mine out of pocket.