phenpro.com

CONTACT US

Contact Dr. Anchors

DR. ANCHORS

About Dr. Anchors
Interview with Dr. Anchors
Dr. Anchors' Weight Loss Lessons
Dr. Anchor's Book: Medical Myths Doctors Believe
Dr. Anchor's Book: Life Between Meals
Dr. Anchor's Book: Safer Than Phen-Fen

PHEN-PRO

What is Phen-Pro?
FDA Approval for Phen-Pro
Why does 5-HTP work?

FORUMS

Discussion Forums Recent Forum Topics

SEARCH THIS SITE


Advanced Search

SEARCH THE WEB

Google

MEMBERS

Login
Register

MAILING LIST

CATEGORIES

5-HTP
Attention Deficit Disorder
BMI Table
BMI Table for Children
Calorie Counting
Carbohydrates
Childhood Obesity
Contact Dr. Anchors
Diet Pills
Diet Soda
Diet: What should I eat?
Dogma
Dr. Anchors' Weight Loss Lessons
Exercise
Fake Diet Pills
Fenfluramine
French (The French)
How To Live A Long Time
Interview with Michael Anchors, MD, PhD
Kidney Stones
Medical Myths
Men and Weight Loss
Men and Women, Differences
Metabolism
Non-Celiac Gluten Sensitivity
Obesity, Ideas about the cause
Opinion
People Who Don't Lose Weight
Phen-Pro
Phentermine
Science
Soda (colas)
Sweeteners
The Media
Weight Loss Patients
Weight Loss Scams
Weight Loss Tips
Weight Loss, General articles
What I've Learned from Patients
Who is Dr. Anchors?

ARCHIVES

October, 2017
September, 2017
August, 2017
May, 2017
April, 2017
March, 2017
February, 2017
January, 2017
November, 2016
September, 2016
August, 2016
July, 2016

ARCHIVE SUMMARY

View by Date
View by Category

RSS / XML


RSS 1.0
RSS 2.0
RSS Atom
Home page  >  Article | Previous article | Next article

QUICKLINKS AND VIEW OPITONS

  • Articles with Recent Comments
  • Recent Forum Topics
  • Summary View
  • Headline View
  • Category View
  • Archive of Quotes
  • ​Binding Proteins Matter


    Posted by .(JavaScript must be enabled to view this email address)
    Tuesday, May 12, 2015 1:36 pm Email this article

    Many overweight patients take vitamin D or testosterone supplements prescribed by their primary care doctor. Few patients need it. Here is what is going on.

    Vitamin D and testosterone molecules in the blood exist in two states: (A) bound, i.e. stuck to a binding protein, or (B) floating free. Only the molecules floating free bind to a receptor and have an effect. In the case of testosterone just 1% floats free. All the rest is bound & inactive.

    When your doctor orders a simple vitamin D or testosterone level, the laboratory returns a single number which is the total of both the free fraction and the bound fraction. But as you see, it is only the free fraction that matters.

    When people gain weight, the amount of the binding protein in the blood goes down. So the total amount of vitamin D or testosterone in the blood goes down, but the free fraction remains the same.

    Doctors should measure the free fraction only. Then this silly belief that almost all people are deficient in vitamin D and men are deficient in testosterone would fade away.

    Do not take a vitamin D or testosterone supplement "just in case". Either do the right blood test or don’t take the supplements as all, because too much vitamin D or too much testosterone causes problems.

    Articles on the same subject can be found here:


    COMMENTS

    Please feel free to share your comments about this article.


    Name:

    Email:

    Comments:

    Please enter the word you see in the image below:


    Remember my personal information

    Notify me of follow-up comments?



    © Copyright 2003-2017 - Michael Anchors, MD, PhD - All Rights Reserved.