• Meet Dr. Weil
  • Origins
  • Healthy Aging
  • Marketplace
  • Podcasts
  • Accessibility
  • Subscribe
Dr. Weil Logo Dr. Weil Logo Weil™ Andrew Weil, M.D.
  • Health & Wellness
    Health & Wellness
    Body, Mind & Spirit
    • Addiction
    • Allergy & Asthma
    • Autoimmune Disorders
    • Back Pain
    • Bone & Joint
    • Cancer
    • Colds & Flu
    • Dental & Oral
    • Diabetes
    • Disease & Disorders
    • Ears, Nose, & Throat
    • Feet
    • Gastrointestinal
    • Hair, Skin, & Nails
    • Headache
    • Heart
    • Insects & Parasites
    • Liver & Kidney
    • Mental Health
    • Pregnancy & Fertility
    • Respiratory
    • Sexual Health
    • Sleep Issues
    • Stress & Anxiety
    • Vision
    Balanced Living
    • Exercise & Fitness
    • Gardening
    • Healthy Home
    • Healthy Living
    • Meditation & Inspiration
    • Meet Dr. Weil
    • Pets & Pet Care
    • Technology
    • Wellness Therapies
    Health Centers
    • Aging Gracefully
    • Children
    • Condition Care Guide
    • Men
    • Women
  • Diet & Nutrition
    Diet & Nutrition
    Anti-Inflammatory Diet & Pyramid
    Cooking & Cookware
    Diets & Weight Loss
    Food Safety
    Nutrition
    Recipes
  • Vitamins, Supplements & Herbs
    Vitamins, Supplements & Herbs
    Herbs
    Supplements & Remedies
    Vitamins
  • Ask Dr. Weil
  • Blogs
    Blogs
    Bulletins
    Health Tips
    Spontaneous Happiness
  • Mushrooms
  • Sleep
Press "Enter" to search
Dr. Weil Logo Weil™ Andrew Weil, M.D.
  • Health & Wellness
    Health & Wellness
    Body, Mind & Spirit
    • Addiction
    • Allergy & Asthma
    • Autoimmune Disorders
    • Back Pain
    • Bone & Joint
    • Cancer
    • Colds & Flu
    • Dental & Oral
    • Diabetes
    • Disease & Disorders
    • Ears, Nose, & Throat
    • Feet
    • Gastrointestinal
    • Hair, Skin, & Nails
    • Headache
    • Heart
    • Insects & Parasites
    • Liver & Kidney
    • Mental Health
    • Pregnancy & Fertility
    • Respiratory
    • Sexual Health
    • Sleep Issues
    • Stress & Anxiety
    • Vision
    Balanced Living
    • Exercise & Fitness
    • Gardening
    • Healthy Home
    • Healthy Living
    • Meditation & Inspiration
    • Meet Dr. Weil
    • Pets & Pet Care
    • Technology
    • Wellness Therapies
    Health Centers
    • Aging Gracefully
    • Children
    • Condition Care Guide
    • Men
    • Women
  • Diet & Nutrition
    Diet & Nutrition
    Anti-Inflammatory Diet & Pyramid
    Cooking & Cookware
    Diets & Weight Loss
    Food Safety
    Nutrition
    Recipes
  • Vitamins, Supplements & Herbs
    Vitamins, Supplements & Herbs
    Herbs
    Supplements & Remedies
    Vitamins
  • Ask Dr. Weil
  • Blogs
    Blogs
    Bulletins
    Health Tips
    Spontaneous Happiness
  • Mushrooms
  • Sleep
  • Meet Dr. Weil
  • Origins
  • Healthy Aging
  • Marketplace
  • Podcasts
  • Accessibility
  1. Home
  2. Health & Wellness
  3. Balanced Living
  4. Healthy Living

A Dark View of Your Blood?

Is darkfield microscopy, where they practice live blood analysis, a good way to tell what supplements a person needs to take?

Andrew Weil, M.D. | January 9, 2007

Laboratory assistant analyzing a blood sample
1 min

Absolutely not! Although darkfield analysis is a legitimate scientific tool, the tests you ask about are completely bogus. With standard microscopy, you see the object you want to view lit by bright light. Darkfield microscopy directs the light at the sample you’re looking at but blocks it from the surrounding area so that you see the magnified images against a dark background. This modification provides better contrast and a better view of unstained or transparent specimens.

But that, I’m afraid, is the only legitimate science in the practice of live blood analysis (LBA). This procedure is used by practitioners who claim that a darkfield analysis of a blood sample reveals much about a person’s health. Usually, the magnified blood cells are projected onto a large screen, so that patients can watch as practitioners point out “abnormalities.” Most of the abnormalities are artifacts of the technique of darkfield microscopy, but LBA proponents claim they represent early indications of cancer and other serious diseases. They argue that LBS can identify cancer and immune system diseases years earlier than other tests, diagnose vitamin deficiencies, kidney and bladder problems, determine if your blood lacks oxygen; tell you whether you’re running low on trace minerals, drink too much alcohol, and or even if you are not getting enough exercise.

None of this is actually possible by LBA. Over the years, various state authorities have clamped down on practitioners who promoted LBA. In 1996 Pennsylvania barred three chiropractors from using LBA for diagnosing nutritional deficiencies unless they maintained a lab that met state and federal standards for complex testing. In Rhode Island a member of the state medical board warned the public to be suspicious of any practitioner who offers testing after the state health department ordered a chiropractor to stop performing LBA.

And a British physician noted in an on-line article that patients lured by LBA are potentially cheated three times over. “First, you are diagnosed with a ‘condition’ you don’t have; then a lengthy and expensive treatment ensues; and finally the bogus test is repeated and you are declared ‘improved’ or ‘back to normal.'”

Darkfield microscopy combined with live blood analysis may sound like cutting edge science, but it is old-fashioned hokum. Don’t buy into it.

Andrew Weil, M.D.

Dr. Weil on Healthy Aging

Start Your 14-Day Free Trial

Free Newsletters

Stay Connected With Dr. Weil

Anti-Inflammatory Diet

Follow Dr. Weil’s Food Pyramid

Get Dr Weils Newsletter Updates

Exclusive Lifestyle, Nutrition & Health Advice

Dr. Weil's FREE health living advice delivered to you!

By clicking "Subscribe," you agree to the DrWeil.com Terms and Conditions and Privacy Policy. You also agree to receive emails from DrWeil.com, and you may opt out of DrWeil.com subscriptions at any time.

Trending Now

Portrait an unknown male doctor holding a stethoscope behind
Healthy Living

A Better Kind of Medicine?

Young couple is relaxing in the sauna. High angle view.
Healthy Living

A Better Way to Sweat?

Laboratory assistant analyzing a blood sample
Healthy Living

A Dark View of Your Blood?

Meet Dr. Weil: A Healthy Doctor | Andrew Weil, M.D.
Healthy Living

A Healthy Doctor

Dr. Weil Logo Weil™ Andrew Weil, M.D.
Dr. Weil's Signature

Exclusive Lifestyle, Nutrition & Health Advice

  • About Us
  • Press Information
  • Advertising
  • Contact Us
  • Terms of Use
  • Privacy Policy

Terms of Use | Privacy Policy

Information on this website is provided for informational purposes only and is not intended as a substitute for the advice provided by your physician or other healthcare professional. You should not use the information on this website for diagnosing or treating a health problem or disease, or prescribing any medication or other treatment. Any third party offering or advertising on this website does not constitute an endorsement by Andrew Weil, M.D. or Healthy Lifestyle Brands.

© Copyright 2024 Healthy Lifestyle Brands, LLC. All rights reserved. Reproduction in whole or in part without permission is prohibited. www.drweil.com