Discount Vitamins & Herbs

- Products by Category
- Alphabetic Product Listing

Home Go Shopping Specials Product Info Health News FAQs About Us Links Site Map

Hyaluronic Acid Center, Neptune Krill Oil & Rejuvenation Science for Doctors

HACKER SAFE certified sites prevent over 99.9% of hacker crime.

Health Guide
Men's Health
Women's Health
Senior's Health
Sports Nutrition
Diet & Weight Loss

Vitamins & Minerals


Spa Products
Anti-Aging Basics
Body Systems
Body Structure
Book Store
Pet Health

My Recommendation
My Favorite Articles
Our Most Popular
Bargain Basement

Free Samples

In-depth Info


Health News Archive 318 - Oral Contraceptives
<<back to structure/function index

Oral Contraceptive Causes Depletion of CoQ10 and Vitamin E

Women taking oral contraceptives have lower levels of coenzyme Q10 and vitamin E, and could possibly benefit from supplements, suggests a new study.

“If our findings are confirmed by larger studies, women who receive oral contraceptives may be considered for coenzyme Q10 and/or alpha-tocopherol supplementation,” wrote lead author Prabhudas Palan from the Albert Einstein College of Medicine in New York.

Coenzyme Q10 and alpha-tocopherol (a form of vitamin E) are both lipid-soluble antioxidants found in cell membranes. CoQ10 and alpha-tocopherol are two antioxidants important in managing inflammation.  Coenzyme Q10 enables cellular energy production in the mitochondria.  A lack of both these nutrients is linked to a variety of disease including Alzheimer's, cardiovascular disease and cancer.

The new study, published in the American Journal of Obstetrics and Gynecology, recruited 55 pre-menopausal women (average age 33) with regular menstrual cycles. 15 women were taking an oral contraceptive (norgestimate/ethinylestradiol) while the other 40 were not taking any oral contraceptive. Women taking multivitamins or Co-Q10 supplements were excluded.

Non-fasting blood samples were taken randomly during the menstrual cycle and serum levels of a variety of antioxidants measured. Gamma-tocopherol, alpha- and beta-carotene, and lycopene levels were similar between the groups. However, serum levels of Co-Q10 were 37 per cent lower in the oral contraceptive group, and alpha-tocopherol levels were 24 per cent lower.

“The results clearly show that the use of oral contraceptives significantly depleted the serum levels of coenzyme Q10 and alpha-tocopherol, compared with levels in non-oral contraceptive users,” wrote the researchers.

There are several limitations with the study, most notably the small sample size, blood samples were non-fasting and were taken randomly during the menstrual cycle. In answer to the last limitation, the researchers point out that lipid-soluble antioxidants are related directly to lipid stores and not affected significantly by changes in daily intakes.

“The potential value, if any, for coenzyme Q10 and alpha-tocopherol supplementation in oral contraceptive users and the effect of menstrual cycle phase on oxidative stress deserve further investigation,” they concluded.

A study published in 2004 in the American Journal of Clinical Nutrition reported that CoQ10 together with alpha-tocopherol could reduce levels of C-reactive protein (CRP) a pro-inflammatory protein linked to cardiovascular disease.  The question thus arises, is long-term use of oral contraceptives to be implicated in coenzyme Q10 deficiency diseases such as increased cancer, heart disease and Alzheimer's?

Source: Palan, P. R., A. T. Magneson, et al. (2006). "Effects of menstrual cycle and oral contraceptive use on serum levels of lipid-soluble antioxidants." Am J Obstet Gynecol 194(5):e35-8.

presented in part in May, 2005, at the 53rd Annual Clinical Meeting of the American College of Obstetrics and Gynecologists, San Francisco.

back to top

Featured Products
  Life Force Multiple - no Iron VALUE SIZE

Our price:
  CoenzymeQ10 200
60 softgels

Our price:
  Co-Q10 200
60 capsules

Our price:
  Vitamin E - Mixed Tocopherols
Our price:

Benfotiamine - Calcium - Coral Calcium - Ester-C - Folic Acid - Silicon - Strontium - Vitamin A - Vitamin B6 - Vitamin B12 - Vitamin C - Vitamin D - Vitamin E - Vitamin K

5-HTP - 7-Keto DHEA - Acai - Acetyl L-Carnitine  - Ageless Face, Ageless Mind - AHCC - Albizzia - Alpha-Lipoic Acid and R-Lipoic Acid - Aronia from Chokeberry - Astaxanthin - Avemar - Bacopa - Beta Glucan - Bilberry - Bioperine - Butterbur - Cetyl Myristoleate (CMO) - Chlorella: Sun, Yaeyama - Cinnamon - CLA - Coconut Oil - CoEnzymeQ10 - Curcumin from Turmeric - DHA Neuromins - Digestive Enzymes - Echinacea - Epicor -FenugreekFrench Maritime Pine Tree Bark - Garlic - Ginkgo Biloba -Glucosamine & Chondroitin - Goji Berry - Goldenseal - Grape Seed Extract - Green Tea - Guggulow - Hoodia - Horse Chestnut - Human Growth Hormone (HGH) - Hyaluronic Acid - Hydrogen (H-): The Fuel of Life - IP-6 - Krill Oil - Kudzu - L-Arginine - L-CarnitineL-Carnosine - L-Methylfolate - L-Tyrosine - Lutein - Lycopene - Mangosteen - Milk Thistle - Modified Citrus Pectin (MCP) - MSM - Mushrooms - N-Acetyl Cysteine (NAC) - Nattokinase - Neptune Krill Oil - Oil of Oregano - Oligonol - Omega-3 - DHA, EPA - Pepsin GI - Phosphatidyl Serine (PS) - Pinolenic Acid - Policosanol - Pomegranate - Prevagen - Probiotics - Probiotic Bacillus Coagulans - Psyllium Fiber - PycnogenolQuercetin - Red Yeast Rice - ReloraResveratrol - Rhodiola Rosea - Ribose - SAM-e - Saw Palmetto - Shower Water Filter - St. John's Wort - Stevia - Sytrinol - Thymic Protein AUbiquinol - Valerian - Vinpocetine

Age-Related Macular Degeneration - Air Pollution - Albizzia Helps Reduce Anxiety and Stress - Alzheimer Studies - Anxiety & Stress - Attentive Child - ADD, ADHD - Calorie Restriction Diet - Candida - Colon Cancer, Colitis, IBD - COX-2, Ibuprofen Side Effects, and Pain Management - Energy - Enzymes Support Digestion - Erectile Dysfunction - Gray Hair and Balding - Hair Growth and Male Pattern Baldness - Hearing - Homocysteine - Inflammation and Weight Loss - Immune - Life Force Multiple - Liver - Menopause - Men's Fertility - Mercury Cleansing - Milk Thistle and Liver Disease - Minor Pain and Inflammation - Omega-3 - Ultra Purity CO2 vs. Molecular Distillation - ORAC - Osteoporosis - Pain Relief - Parkinson's Disease CoenzymeQ10? - The Perricone Weight-Loss Diet - Relora Cortisol and Stress-Induced Eating - Senior's Health - Side Effects of Lipitor®, Zocor® and Statin Drugs  - The Sinatra Solution: for Heart Disease - Sinus and Allergy - St. John's Wort - Prozac® - Syndrome X - Tinnitus - Transitions for Menopause - Varicose Veins and Spider Veins  - The Wrinkle Cure for Youthful Skin

Home | Specials | Product Info | Old Health News | FAQs | About us | Blog | Links | Links2 | Links3 | Sitemap | Contact us
Alphabetic Product Listing | Products by Category | Links4 | Links5
TOLL FREE: 800-401-9186

View Cart

Terms of Use | Privacy Policy | Terms and Conditions of Sale | Disclaimer

Copyright © 2001-2010, Discount Herbs & Vitamins, Inc. All rights reserved.

These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.
Please consult a qualified medical practitioner for medical advice.