That is an important piece of the puzzle jimmylegs. I take 6,000 - 10,000 mg of fish oil a day. It's brain food! I do the enteric capsules so that I don't get the deep-sea burps, but my 3 year old loves cod liver oil on a spoon. His mother is Portuguese, so maybe that's it...
Vitamin E8 - but not alpha-tocopherol alone! as it scavenges the delta-tocopherols from the blood, and it is the delta-tocopherols that are important. North Americans are hugely deficient in the delta-tocopherols. Not all Vitamins E are created equal.
Nattokinase is wondrous in helping the blood, supporting the circulatory system. It is an enzyme, and you can't really overdose on it to my knowledge. (well, everything in moderation)
There is a ton of validation for all of that, which I can't put links to right now. Simple Google searches will give you a lot. Just make sure that the source isn't Johnson's-free-and-anonymous-health-tips.com, but is reputable - such as doctors' journals, PubMed, NIH, etc.
I noticed at the beginning of this thread that Mark was mentioning thick blood, and have gathered that he grows and eats lots of leafy greens loaded with Vitamin K - a clotting factor. You can get your K serum levels checked
As a side note, I cannot ever recall having a bruise in my life, and I stop bleeding very quickly.
Remember too, that Recommended Daily Allowances (RDA) for vitamins and nutrients is the minimum requirement to sustain life. I have been taking 15,000 iu of D3 for years (RDA = 400 iu). Research has shown that it only starts to get toxic in the 100,000s. I read that some clowns were taking close to a million a day, until they became anorexic, and very ill. Dr. Mercola (I take him with a dose of salt) said that if you get Swine Flu, to take 150,000 iu in one dose.
I'm sure that most people are aware of all of that, and hope that I am not seeming pedantic. And of course, consult a health practitioner and remember that I use a fake name, and this is the Internet. Caveat lector.
My name is not really Johnson. MSed up since 1993