I have not heard of apple pectin, I have tried EVERY OTC for constipation, to no avail, as well as milk o magnesia, magnesium citrate (which historically has worked, always)…but i don’t feel constipated, in fact, no urge at all. Sometimes, after long periods of not going, I’ve noticed there is NO noise…no normal gut sounds at all. I also had swelling in lower back over hip with crippling pain…was on my cane for 3-4 days , then pain stopped. So I’m walking normal now. Not to mention, brain fog. I use that term loosely, because my memory is so bad…I only notice when I do remember something. I’m tired of being in bed & crying for weeks at a time.