Hi, I absolutely know grape seed extract reduces/eliminates fluid/edema. I'm headed to 20 yrs on grape seed extract this Sept. I had two bouts of edema, one from BP meds and the other from hip replacement surgery....both times I upped the dose and the edema gone.
I would not be without grape seed ex in my arsenal for health care.
http://umm.edu/health/medical/altmed/condition/edema