herb vitamin nutrition
Nutrition, Herbs, Vitamins
Classical Homeopathy
Ronald Steriti, ND, PhD
Licensed Naturopathic Physician
(239) 659-2684
Natural Health
Health Quiz
My new web site NaturoBase.com has a lot more information - over 6,000 research studies, etc!

Visit the NaturDoctor Store for professional nutritional supplements.

Basic Nutritional Support
Hormone Panels
Children's Health.
Men's Health
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Digestion Support
Heart and Cholesterol


Healthy Coffee that contains Ganoderma, a very healthy mushroom.

Lifexpand.com - tapping into the Brazilian rainforest.

Biotin, Biopeiderm


Biotin is absorbed in the small intestines


RDA - 100-200 mcg
Optimal - 300 mcg

Raw eggs contain avadin, which inhibits biotin absorption.


Biotin is essential for carboxylation:
Acetyl CoA carboxylase, which is involved in synthesis and oxidation of fatty acids
Pyruvate carboxylase is a critical enzyme for gluconeogenesis
Methylcrotonyl-CoA carboxylase is needed to form leucene, an essential amino acid
Propionyl-CoA carboxylase is involved in the deamination of amino acids

Biotin is required for the synthesis of pancreatic amylase and niacin
Biotin may be involved in the synthesis and release of insulin

Biotin may play a role in DNA replication and transcription


propionyl CoA -> methyl malonyl CoA (forms Succinyl CoA)
pyruvate -> oxaloacetate
acetyl CoA -> malonyl CoA


None known


Common manifestations resemble those of essential fatty acid deficiency. Avidin, a protein found in egg whites, binds to biotin and prevents absorption. Biotinase and holocarboxylase synthetase deficiency are hereditary disorders.

dermatitis with scales and hardening often starting near the eyes
perioral dermatitis, conjunctivitis, alopecia, hair loss
anorexia, lassitude, nausea
muscle atrophy, ataxia
developmental delay.

Drug Interactions

Long-term anti-convulsant (anti-seizure) therapy reduces biotin levels.
Primidone and carbamazepine inhibit biotin absorption in the small intestine.
Phenobarbital, phentyoin, and carbamazepine increase urinary excretion of biotin.


diabetes mellitus - stimulates glucokinase, stimulates insulin secretion
one study showed that 9 mg/day lowered glucose levels by 45%

seborrheic dermatitis in infancy (cradle cap)
brittle fingernails - 2.5 mg/day increases nail thickness by 25%

What's your next step?

The next step, after you have been diagnosed with a disease, is to find out what is the specific cause, and then choose supplements that address it. Phone consults are my specialty. Please call my at (239) 659-2684 to schedule a consultation.

The choice is yours

I recommend that you make an informed choice, and the goal of this web site is to provide you with the information to make a wise choice when it comes to your health and wellness.

As you can see, I don't sell any vitamins on this web site. There are thousands of vitamin stores that will sell you whatever vitamin you want, and many of them offer discounts.

If you are interested in some high-quality basic nutritional supplements, I recommend visiting the Store You will find my recommendations for a multiple, tasty chewable fiber wafers, high-potency probiotics, and fish oils.

Good luck in your journey towards health and wellness!!

Why don't you tell me what vitamins to take for this disease?

Unfortunately, that would be a clear violation of FDA regulations. Also, one of the most important aspect of naturopathy is: "Treat the person, not the disease". This is a profound statement, and many people have spent thousands of dollars on vitamins listed in books or web sites for a specific disease. This is what I call "vending machine medicine". It rarely works! The solution is to find a naturopathic physician, such as myself, to assist you.


Ronald Steriti, ND, PhD
Natural Health Coach and Consultant
Call today (239) 659-2684

Information on this site is provided for informational purposes only and is not meant to substitute for the advice provided by your own physician or other medical professional. You should not use the information contained herein for diagnosing or treating a health problem or disease, or prescribing any medication. If you have or suspect that you have a medical problem, promptly contact your health care provider. Information and statements on this site have not been evaluated by the Food and Drug Administration.

© 2002