dark blood???

Every time i get my blood drawn for s test or vitamin infusion or ozone and I see my blood it is dark like chocolate syrup. Being dhydrated can do that but im drinking lots of water all day, with electrolytes. So... toxins?? somethhing else??? also my ahnds feet and ears get really red n flushed?? is that related??

what kind of enzymes?

I have the same problem. My blood is very dark. I needed to have blood drawn on Mo and had to be stuck 5 times and they were not able to get what they needed because the blood kept coagulating. I stopped taking Nattokinase a week prior to that so I am assuming when I am back on it it will get better. Nattokinase is a natural blood thinner that helps break up biofilm and you should take it in between meals. Ask your doc.