FMT has a strong potential to either cure or improve many diseases, including Celiac Disease. However, the FDA has only approved FMT for the treatment of C.Diff infection at this time, and FMT is not approved in the United States for any other treatments. However, I hope that this changes in the future. Preliminary studies have shown benefit of FMT for treatment of a subset of autism here and here, and Phase III trials will begin soon for FMT for that subset of autism. I believe (this is my opinion) that autism is an autoimmune disorder. Dr. Alessio Fasano states that autoimmune diseases begin with leaky gut/intestinal permeability, so it is probably true that FMT from a or several very healthy, disease-free donors may offer cures or relief of some kind for many who suffer from autoimmune conditions. While the adaptive arm of our immune system will never "forget" gluten as an antigen, in my opinion if the gut microbiota can be brought back into a healthy state that contains missing microbes discovered by Dr. Fasano's CDGEMM team to be protective against gluten, and also an overall balance of the microbiome is restored, then zonulin will not be triggered upon ingestion of gluten, meaning the intestinal wall is remaining closed and not leaky, and therefore the immune system will not become activated by gluten anymore.  In such a theoretical scenario, gluten would only become a problem again if/when there is another pathogen inside the intestines that activates zonulin, causing the intestine to open to pass the pathogen to the immune system beneath. So if there was a serious bacteria or virus, then the person would need to avoid gluten during the illness and maybe for a while beyond the illness as well, so as not to have a reaction to gluten (this is all speculation based upon my understanding). Antibiotics can do permanent damage, but usually not. In an adult, the microbiome usually recovers, unless their microbiome is already very compromised. However, in a child under the age of 3, antibiotics do have the potential to permanently harm the child's microbiome, killing off protective strains of bacteria, causing a life-long predisposition to autoimmune diseases.

SIBO is a common secondary issue in people with untreated celiac disease. Articles in this category cover this: https://www.celiac.com/celiac-disease/celiac-disease-amp-related-diseases-and-disorders/bacterial-overgrowth-and-celiac-disease/

Many people with celiac disease, especially those who are in the 0-2 year range of their recovery, have additional food intolerance issues which could be temporary. To figure this out you may need to keep a food diary and do an elimination diet over a few months. Some common food intolerance issues are dairy/casein, eggs, corn, oats, and soy. The good news is that after your gut heals (for most people who are 100% gluten-free this will take several months to two years) you may be able to slowly add some these items back into your diet after the damaged villi heal, although some people may need to permanently eliminate certain foods. The two main ones to eliminate would be dairy/casein and oats.  

I am considering using the Metabolic Meals delivery service. They claim to be 100% gluten free. Has anybody used this service? If so, have you had any reactions? Is the food worth the price? Thanks, any input is appreciated

If you are looking for a good diet to follow to start your real recovery Dr Fuhrman's Eat to Live, 6 Week Plan is a good choice. Dr. Fuhrman’s 6-Week Nutritarian Diet Quick Start Dr Fuhrman is a Cardiologist who began the Nutritarian diet.  Helped me immensely with understanding nutrition.  Adapt it to GFD. If you can find them Drs Fuhrman, Amen, Davis and Hyman all had recurring annual specials on South Florida Public Service TV.