Sale. Clipless coupon. 10% off on all Vitamin Shoppe brand products. Shop now.
plus get free shipping on orders over $25. Order by 6 p.m. ET Ships same day. Learn more.
Reorder products. See your order history.
FREE SHIPPING on orders of $25 or more.

How to get FREE Shipping:
1. Place your online order of $25 or more*
2. Ship to an address within the United States (including U.S. territories)
3. Your shipment should arrive within 2-6 business days from your order

* Your total purchase must reach the designated amount after any discounts are applied and prior to the costs of shipping and tax.
Order by 6, We'll Ship the Same Day

Domestic orders placed Monday - Friday by 6 p.m. Eastern Time will be packed and shipped the same day, pending verification of billing information and the shipping method selected. International orders and orders containing gift cards, out-of-stock items or refrigerated items will be processed as quickly as possible, but won't necessarily be shipped out the same day.

Excludes all orders placed on major US holidays (Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day and New Year's Day).

 

Health Guides
Health Concerns
Vitamin Guide
Herbal Remedies
Homeopathy
Weight Control
Sports & Fitness
Women's Health
Men's Health
Safety Checker
Food Guide
Newswire
Personal Health Tools
 Print this article
 

Onion

Also indexed as:Allium cepa
Onion: Main Image© Martin Wall

Related Topics

Botanical names:
Allium cepa

Parts Used & Where Grown

Like its close cousins garlic, chives, scallions, and leeks, onion is a member of the lily family (Liliaceae). It is native to Eurasia but now grows all over the world, due mostly to people bringing it with them as a staple food wherever they migrated. The French explorer Pere Marquette was saved from starvation in 1624 by eating wild onions near the present site of Chicago--the name of the city is derived from a Native American word for the odor of onions.1 The bulb of the plant is used medicinally.

  • Reliable and relatively consistent scientific data showing a substantial health benefit.
  • Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
  • For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

Our proprietary "Star-Rating" system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.

For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.

This supplement has been used in connection with the following health conditions:

Used for AmountWhy
Type 1 Diabetes
20 grams fresh onion three times per day2 stars[2 stars]
Large amounts of onion have been shown to lower blood sugar levels in people with diabetes, possibly by blocking the breakdown of insulin in the liver.
Type 2 Diabetes
20 grams fresh onion three times per day2 stars[2 stars]
Large amounts of onion have been shown to lower blood sugar levels in people with diabetes, possibly by blocking the breakdown of insulin in the liver.
Asthma
Refer to label instructions 1 star[1 star]
Onion may act as an anti-inflammatory in people with asthma.
Cough
Refer to label instructions 1 star[1 star]
Onion has a long history of use for relieving coughs.
Eczema
Refer to label instructions 1 star[1 star]
Onion injections into the skin and topical onion applications have been shown to inhibit skin inflammation in people with eczema, according to one trial.
Hypertension
Refer to label instructions 1 star[1 star]
Onion may have a mild blood pressure-lowering effect, according to preliminary research.
Infection
Refer to label instructions 1 star[1 star]
Onion is an herb that directly attack microbes.

Traditional Use (May Not Be Supported by Scientific Studies)

Onion has been used as food for many centuries.2 Onion was also a popular folk remedy, being applied to tumors, made into a syrup for relieving coughs, or prepared in a tincture (using gin) to relieve "dropsy" (heart failure-related edema).3 It was considered a weaker version of garlic by many herbal practitioners. Like garlic, onion has a longstanding but unsubstantiated reputation as an aphrodisiac.4

Copyright 2014 Aisle7. All rights reserved. Aisle7.com

Learn more about Aisle7, the company.

Learn more about the authors of Aisle7 products.

The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.

 
sign up. save 10%

invalid email address entered. please try again.

email:
 
almost there! click sign me up for exclusive coupons, great deals, early access to sales and info on how to stay healthy & fit.  view our privacy policy.
*first time customers only