A good read and information, I hope the link opens. I've going on 2 decades taking grape seed extract:

I just posted a link but it doesn't open...if you google:

feet turning blue etc...you will find info, sorry the link I posted wouldn't open. Some do when I post things and others don't...

I'd like you to read this, so do a search with this:

Circulatory Problems - Thompson's | The Natural Advantage