...I so often (and loudly!) encourage people to lower their oxalate intake gradually. While this may not produce such a sudden and clear reversal of symptoms, it will also prevent an abrupt onset of severe dumping, which can be painful and, on the whole, quite detrimental to the health of the individual...
There is good news, however. For starters, most individuals, once they have been through one or two rounds of dumping, will be able to recognize their symptoms right away. And often, simply taking certain supplements will help alleviate the symptoms, or at least make them bearable.
My first line of defense against dumping (and a supplement I take every day “whether I need it or not”), is magnesium (see what brand of magnesium I use myself
on this page). While calcium has been shown to be more effective at binding oxalate in the gut, my own experience has taught me that my body likes to use magnesium for binding oxalate once it is in the bloodstream. Since I don’t have any problem with my kidney function or other issues which would contraindicate magnesium supplementation, this is my preferred method of mopping up excess oxalate. As a lovely side effect, I’ve found a nice decrease in blood pressure and heart palpitations as I’ve increased and maintained my level of magnesium intake.
I’ve also found relief using calcium and vitamin D (see my post on the importance of vitamin D to low oxalate dieters
here), while various B vitamins sometimes help with things like restless legs and yeast overgrowth (wich is a common problem in oxalate-affected individuals). Alas, I have discovered over time that some of the same vitamins which once helped me deal with oxalate symptoms, now just force me to dump more and harder. This is one of the ways in which dumping can change, even in the same individual, over time.
I have also learned that as you heal other issues, dumping can become a much milder event...