It is a common known fact that Omega 3 fats help lower triglycerides, decrease blood clotting, and help improve the health of your blood vessels, and help moderate blood pressure.
Mediterranean diet includes salmon, tuna, mackerel, trout, herring, sardines – and these are rich to good sources of the healthy omega 3 fats; (Review the Omega 3 fats content by clevelandclinic.org)