Grape Seed Extract
Several studies show that grape seed extract plays a significant role in treating symptoms of various blood and health conditions, such as high blood pressure [3] A test tube study showed that grape seed extract can also prevent platelet aggregation. The researcher discovered that grape seed extract may help prevent blood clots in humans.
You can get grape seed extract as a liquid, capsules, or tablets. However, it is important to work with a doctor before using grape seed extracts as a capsule. According to the National Center for Complementary and Integrative Health, you should stay away from grape seed extract if you have a blood disorder, are going to undergo surgery soon, and take blood-thinning regulations.