Dr. Hartman,
It doesn’t help immediately, meaning it doesn’t neutralize the food reaction from the digestive system. Therefore, it is something to try if the ingestion was hours later. What it seems to do, from clinical experience with many patients over the years, is help with the processing of gluten and/or casein peptide reactions. This is most obvious in kids who have known strong reactions and regressions from these peptides. How it works exactly…? Sulfur is involved in liver function, and sulfur containing amino acids are linked to the methylation cycle, including glutathione production. It may be there is an improvement in these systems that diminish the adverse effects.
Bentonite clay would likely work the same way as activated charcoal. It would need to be used fairly soon after ingestion of these foods. I think it is a viable option.
Dr. Woeller