There is some evidence that pine bark extract may help improve circulation and chronic venous insufficiency, but be aware that some supplements are not like those used in most clinical trials. Find out what to look on labels in our updated answer to the question: What is Pycnogenol and does it work?

A study of more than 20,000 people found that those who ate fish several times per week had a reduced risk of venous blood clots, and that getting additional fish oil from supplements reduced the risk even further. Get the details, including our tests of fish oil and other omega-3 supplements in the Fish Oil and Omega-3 Fatty Acid Supplements Review (Including Krill, Algae, Calamari, Green-lipped Mussel Oil) >>