Onion (Allium cepa)
Onions are believed to have asthma prevention abilities, general disease-preventive measure,
antiviral and blood-sugar balancing properties. Drinking a warm delicious onion soup is a good idea,
when we have a cold.
In the old time, people drank a heated mixture of olive oil, chopped onion, flaxseed for relieving
cough, bronchitis or chest congestion.
RESEARCH FINDINGS ON GARLIC BENEFITS
Onion contains a flavonoid called quercetin which can reduce blood pressure and inhibit signal
transduction pathways in vitro that regulate cardiac hypertrophy.  In a study of Sprague-Dawley
rats, supplementation of Welsh onion lowered the blood pressure. 
Actually, quercetin has powerful chemical and biological activities including chelatin, free-radical
scavenging and antioxidant activities.  Onion also contains large amounts of triterpenic acids and
amino acids. Thus, onion has excellent health benefits on wound and scar healing.  Consumption
of onion is also linked to decreased prostate cancer mortality risk.  And in a test-tube study,
quercetin protects against the genotoxic effects of atrazine. 
Several studies show onion possesses antidiabetic potential. 
 Jalili T et al Quercetin-supplemented diets lower blood pressure and attenuate cardiac
hypertrophy in rats with aortic constriction. J Cardiovasc Pharmacol 2006 Apr;47(4):531-41.  Colli
JL et al, International comparions of prostate cancer mortality rates with dietary practices and sunlight
levels. Urol Oncol. 2006 May-Jun;24(3):184-94.  Tataringa G et al, Phytochemical and
microbiological characterization of two Allium cepa L extracts in order to include in dermocosmetics.
Rev Med Chir Soc Med Nat Iasi. 2005 Jul-Sep;109(3):676-9.  Mastrangelo S et al Quercetin
reduces chromosome aberrations induced by atrazine in the Allium cepa test. Environ Mol Mutagen.
2006 May;47(4):254-9.  Srinivasan K. Plant foods in the managment of diabetes mellitus: spices as
beneficial antidiabetic food adjuncts. Int. J Food Sci Nutr. 2005 Sep;56(6):399-414.  Yamamoto Y et
al, Antioxidative and antihypertensive effects of Welsh onion on rats fed with a high-fat high-sucrose
diet. Biosci Biotechnol Biochem 2005 Jul;69(7): 1311-7.
THE INFORMATION ABOVE IS FOR YOUR INFORMATION ONLY.
IF YOU HAVE ANY HEALTH PROBLEM, YOU SHOULD CONSULT WITH YOUR DOCTOR IMMEDIATELY.
References: (1) Amagase, H., Petesch, B.L., Matsuura, H. et al. (2001) "Intake of garlic and its bioactive
components." J. Nutr. 131: 955S-926S. (2) Fleischauer, A.T. and Arab, L. (2001) "Garlic and cancer: a critical
review of the epidemiologic literature." J. Nutrition 131: 1032S-1040S. (3) Milner, J.A. (2001) "Mechanisms by
which garlic and allyl sulfur compounds suppress carcinogen bioactivation. Garlic and carcinogenesis." Adv. Exp.
Med. Biol 492: 69-81. (4) Milner, J.A. (2001) "A historical perspective on garlic and cancer." J. Nutrition 131:
1027S-1031S. (5) "Allium Vegetables and Organosulfur Compounds: Do They Help Prevent Cancer?"
http://ehpnet1.niehs.nih.gov/members/2001/109p893-902bianchini/bianchini-full.html. (6) "Garlic: Effects on
Cardiovascular Risks and Disease, Proliferative Effects Against Cancer, and Clinical Adverse Effects."
1 Curr Opin Lipidol. 1994 Feb;5(1):6-10 2. Macpherson IJ. The pungency of garlic: activation of TRPA1 and TRPV1
in response to allicin. Curr Biol. 2005 May 24;15(10)929-34. [1A] Food Chem Toxicol. 2005
Jan;43(1):57-63].[2A] J Nutr Biochem. 1999 Jun; 10 (6):372-6].[3A]Atherosclerosis. 2004
Dec;177(2):291-7].[4A] Garlic Boosts Lung Health in Rats, HealthDay, April 3, 2005[5A] J Med Assoc Thai. 2004
Oct; 87 (10):1156-61].[6A] Br J Nutr. 2004 Oct; 92 (4):701-6].[7A] Rev Argent Microbiol. 2004 Jul-Sep; 36
|Lalitha Thomas, the author of 10 essential herbs, considers onion as a superb antiseptic. She explains in her book that
onion contains a large amount of sulphur. Like garlic, herbalists also use onion to cleanse the blood and lower high blood
pressure. Thus, onion offers valuable health benefits to us.
THIS WEBSITE TALKS ABOUT THE SIDE EFFECTS AND THE POTENTIAL HEALTH BENEFITS OF HERBS, SUPPLEMENTS,
PHYTONUTRIENTS AND DRUG PRODUCTS. THIS WEBSITE ALSO TALKS ABOUT SOME POPULAR HEALTH ISSUES AND
DISEASES. ARTICLES IN THIS WEB SITE IS FOR YOUR REFERENCE ONLY. IF YOU HAVE ANY QUESTION, YOU SHOULD
CONSULT WITH YOUR DOCTOR IMMEDIATELY. ALL RIGHTS RESERVED 2011. DO NOT COPY NOR TRANSFER ARTICLES