I though some might find this video by Dr. Boz of interest. The title does not really give a proper understanding of the content.
My Cole’s Notes (YMMV):
Basically the video is about consumption of PEG 400, to assess gut permeability or leaky gut.
PEG 400 is a low molecular weight mixture of a select number of hydrophilic polyethylene glycol molecules with a very specific range of molecular weights and therefore molecular sizes. Dr. Boz mistakenly calls them proteins. Because they have very low toxicity they are already used in many pharmaceutical products.
They are consumed and then measured in the urine. Different sized PEG’s get absorbed in different areas of the gut. The more PEG you have in your urine the more leaky your gut is and more likely you are to suffer autoimmune responses. A keto diet and an even more aggressive Paleo Keto Diet (PKD) appear to reduce gut permeability and reduce a whole host of associated gut related disorders…
An example of Crohn’s disease successfully treated after 10 months on the paleolithic ketogenic diet, with improvements in gut permeability shown with the PEG 400 challenge test.