Advertisement
question

What do I need to know about ginkgo biloba and ginseng?

Dr. Michael Roizen, MD
Dr. Michael Roizen, MD
Internal Medicine
answer
Two herbs that patients ask us about more than any others are ginkgo biloba and ginseng. I lump them together here because I almost always hit them in combination when I have this talk with patients.

Ginkgo biloba comes from the leaves and seeds of the Chinese ginkgo tree, and many people think it can boost memory, lower blood pressure, and even reverse aging. Ginseng is a root that's taken as an energy booster, and some people also believe it can strengthen the immune system.

Do they work? Patients want a definitive answer. So we give them one: Try the supplements, and if they work for you, then yes, they work.

There are plenty of studies on these herbs, but their results are contradictory. Most of the evidence for them comes from personal testimonials and anecdotes. It's often impossible to know what's really in a bottle of ginkgo biloba or ginseng based on the label—because labels lie (and the law allows them to lie!). What one supplement manufacturer calls "ginseng" is what another may call "garbage."

And even if the pills genuinely contain these herbs, their potency can vary greatly. It can even depend on the time of year the herbs were harvested. Hunting for the little US Pharmocopiea "P" on the label will help ensure at least some consistency.
YOU: The Smart Patient: An Insider's Handbook for Getting the Best Treatment

More About this Book

YOU: The Smart Patient: An Insider's Handbook for Getting the Best Treatment

Everyone needs to become a smart patient. In fact, in the worst cases, your life may even depend on it. Number one bestselling authors and doctors Michael Roizen and Mehmet Oz have written this...

Continue Learning about Ginkgo

How should I take ginkgo biloba?
How should I take ginkgo biloba? Follow all instructions and warnings on the package of your ginkgo ...
More Answers

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.