While vitamin E itself in somewhat larger doses might not be so dangerous, many here are taking high doses of vitamin c which also has an anticoagulant effect, as well as herbs such as
Alfalfa Coumarin constituants
Angelica Coumarin constituants
Aniseed Coumarin constituants
Arnica Coumarin constituants
Asafoetida Coumarin constituants, anticoagulant in vivo
Celery Coumarin constituants
Chamomile, German Coumarin constituants
Chamomile, Roman Coumarin constituants
Clove Eugenol powerful inhibitor of platelet activity
Fenugreek Coumarin constituants
Feverfew Inhibits platelet aggregation
Fucus Anticoagulant action
Garlic Interaction with warfarin reported
Ginger Inhibition of platelet activity
Ginkgo Inhibition of platelet activity
Ginseng, Panax Reduction of blood coagulation
Horse-chestnut Coumarin constituants
Horseradish Peroxidase stimulates synthesis of arachidonic acid metabolites
Liquorice Inhibition of platelet activity
Meadowsweet Salicylate constituents
Poplar Salicylate constituents
Prickly ash, northern Coumarin constituants
Prickly ash, southern Coumarin constituants
Quassia Coumarin constituants
Red clover Coumarin constituants
Willow
which have an anticoagulant effect.
http://www.uptodate.com/online/cont...ico7.htm&title=Anticoagulant%20herbswhich also act as an anticoagulant. The effect of all the supplements together might be great. While my experience of nosebleeds on 400 IU a day of vitamin E might not be typical, I still say that people should not load up so much on vitamin E. I don't really see any great benefit for most people to take over 200 IU a day of vitamin E.
"Recent concerns have been raised about the safety of vitamin E supplementation, particularly in high doses. An increased risk of bleeding has been proposed, particularly in patients taking blood-thinning agents such as warfarin, heparin, or aspirin, and in patients with vitamin K deficiency. Recent evidence suggests that regular use of high-dose vitamin E supplements may increase the risk of death (from "all causes") by a small amount, although a different study found no effects on mortality in women who took vitamin E daily. Caution is warranted. "
http://www.mayoclinic.com/health/vitamin-e/ns_patient-vitamine