Have ya ever seen live blood analysis? There are definitely improperly digested foods in some people's blood stream. My guess? It had to have gotten there thru the villi and mucus membranes in the digestive tract ... if those things were in proper shape that wouldn't have happened. What made them permiable? Parasites? Fungal forms of candida that I've seen the tenacles on them in my toilet?
I do NOT necessarily believe we have particles of food floating around in our body cavity, looks like that would set up something like a gangreen situation in the body...