Good Foods
If you have been diagnosed with Factor V Leiden, you should alter your diet to prevent excessive blood clotting. Balance your diet by including blood-thinning foods to help counteract the coagulating effects that this genetic mutation has on your blood. Foods high in salicylates, which block vitamin K receptors, naturally thin out the blood in your body. Herbs that contain salicylates include curry powder, cayenne pepper, ginger, paprika, dill, oregano and peppermint. Fruits such as raisins, prunes, cranberries, strawberries, grapes, and oranges also contain salicylates and can be beneficial in preventing blood clots.
Bad Foods
Vitamin K aids in blood clotting and is also good for helping bone growth. Although foods rich in vitamin K are beneficial for people with normal genetics, if you've been diagnosed with Factor V Leiden you should try to reduce your intake of foods rich in vitamin K, since further blood coagulation can increase your chances of developing blood clots. Foods especially high in vitamin K include kale, collards, spinach, turnip greens, beet greens, and Brussels sprouts.