Can an Onion a Day Keep the Doctor Away?

Can an Onion a Day Keep the Doctor Away?
Onions are surprisingly high in beneficial polyphenols.nnattalli/Shutterstock
Joseph Mercola
Updated:

Onions have a long history of medicinal use.

Many experts believe that the first onions appeared in Central Asia. Most agree the vegetable has been cultivated for nearly 5,000 years and might be one of the first cultivated crops since they are easy to grow and transport, and have a long shelf life.

Joseph Mercola
Joseph Mercola
Author
Dr. Joseph Mercola is the founder of Mercola.com. An osteopathic physician, best-selling author, and recipient of multiple awards in the field of natural health, his primary vision is to change the modern health paradigm by providing people with a valuable resource to help them take control of their health.
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