Re: The myth of "mucoid plaque"

 what about intestinal putrefaction i.e undigested food built up, i feel this is a problem in me due to my low stomach acid?

Undigested food will still pass through, but being undgested primarily means you will not obtain much of the nutrition from the food. Undigested proteins can also play a role in triggering off allergies. But it will not build up in the intestines.

and when i take psyullium shakes it helps clean me out and some of the bowel movements are grey and look really old.

That sounds more like an issue of maybe not producing enough bile, which makes the stools lighter. The gray color can indicate a few things, including liver issues or not absorbing dietary fasts properly.