Grape seed extract is used medicinally for several conditions, many related to the heart and blood vessels. This eMedTV article explains how the supplement works, explores its effectiveness, lists potential side effects, and more.
Grape seed extract products are claimed to be beneficial for treating poor circulation and other conditions. This eMedTV resource lists other claimed benefits of grape seed extract and explains whether this supplement is beneficial for children.
Cough, nausea, and headaches are possibly bothersome (but usually mild) grape seed extract side effects. This eMedTV segment lists some of the more significant side effects of grape seed extract that may require immediate medical attention.
There is little evidence to show that grape seed extract really works. This page of the eMedTV site explores the effectiveness of this supplement for various uses, including the treatment of poor circulation, and stresses the need for more research.
A safe, effective grape seed extract dosage has not been established at this time. This eMedTV page discusses reasonable dosing for this supplement, including information on what doses were used in clinical trials and how to find a reliable product.
Grape seed extract can theoretically interact with anticoagulant or antiplatelet medications. This eMedTV page lists various "blood thinners" that may cause grape seed extract drug interactions and explores the potential dangers of these interactions.
As this eMedTV page explains, you should talk to your healthcare provider before using grape seed extract if you have a bleeding disorder or any chronic condition. This page provides grape seed extract safety warnings and precautions to be aware of.
A grape seed extract overdose could theoretically increase the risk of bleeding. This eMedTV Web page describes other theoretical problems that may occur with an overdose of this supplement and explores possible treatment options.
It is not known if grape seed extract is safe for use during pregnancy. This page from the eMedTV site offers a more in-depth look at grape seed extract and pregnancy, including information on why "natural" products may not be safe for pregnant women.
No research has been done to see if grape seed extract is safe for breastfeeding women or their infants. This eMedTV page offers more details on grape seed extract and breastfeeding, and further explores the safety (and effectiveness) of this product.
