FREE U.S. SHIPPING FOR ALL ORDERS $100.00 AND OVER!

Due to increased demand, please allow for an extra 3-4 days to process orders.
Until further notice, all sales are final (no returns) due to circumstances created by COVID-19.

800-385-7863

FREE U.S. SHIPPING FOR ALL ORDERS $100.00 AND OVER!

Share on facebook
Share on twitter
Share on linkedin

B-12 500 mcg 100t by Douglas Labs

B-12 500 mcg by Douglas Laboratories supplies 500 mcg of Vitamin B-12 in each easy to swallow tablet. Vitamin B-12 may be a useful dietary supplement for individuals who wish to increase their intake of Vitamin B-12. Vitamin B-12 is essential for normal energy metabolism of carbohydrates, fat and protein. As a cofactor for methylmalonyl-CoA mutase enzymes, vitamin B-12 helps convert odd chain fatty acids and branched chain amino acids into succinyl-CoA, a common citric acid cycle intermediate.

Vitamin B-12 is also required for nucleic acid (DNA) synthesis, methionine synthesis from cysteine, and normal myelin synthesis in the nervous system. Along with Vitamin B-6 and folic acid, adequate levels of Vitamin B-12 are required to maintain normal plasma homocysteine levels. Elevated plasma homocysteine may be an independent risk factor for developing cardiovascular disease.

There are two distinct mechanisms for intestinal Vitamin B-12 absorption; receptor-mediated absorption and passive diffusion. In the first, vitamin B-12 attaches to a salivary “R-binder” protein which transports it into the small intestine, where vitamin B-12 is released. The vitamin then binds to “Intrinsic Factor” (IF), a glycoprotein normally produced by the gastric parietal cells. This vitamin B-12-IF complex is carried down to the ileum, where it binds to mucosal receptors. Finally, the complex is absorbed and bound to serum vitamin B-12-binding proteins. The second absorption mechanism, passive diffusion, does not require any carriers, such as B-binder or IF. Only about 1% of free vitamin B-12 is passively absorbed, but this can be nutritionally significant with higher dietary vitamin B-12 intakes.

Almost 40% of the population is suggested to have “low normal” plasma B-12 levels. Strict vegetarians, the elderly, and HIV/AIDS patients are often at risk for vitamin B-12 deficiency, either due to low dietary intake or impaired absorption. In the elderly, hypo- or achlorhydria maintains the binding of the vitamin with dietary proteins, leading to malabsorption. Vitamin B-12 deficiency can lead to CNS impairment, including cognition.

SKU: DL0450 Product Categories: , Health Condition:

$9.90

Description

Vitamin B-12 Tablet
A Dietary Supplement
100 Tablets

Ingredients:
Serving Size: 1 tablet
Servings Per Container: 100

Amount Per Serving
Vitamin B-12 …500 mcg
(Cyanocobalamin)

Contains:
Cellulose, Vegetable Stearate, Silica

Does Not Contain:
Yeast, Wheat, Gluten, Soy Protein, Milk/Dairy, Corn, Sodium, Sugar, Starch, Artificial Coloring, Preservatives, Flavoring

Dosage:
As a dietary supplement, adults take 1 tablet 1 to 2 times daily or as directed by your healthcare professional.

WARNINGS:
KEEP OUT OF REACH OF CHILDREN.

For optimal storage conditions, store in a cool, dry place.
(59º-77ºF/15º-25ºC)
(35-65% relative humidity)

Tamper resistant package, do not use if outer seal is missing.

 

Brand

Douglas Labs

Meet Dr. Dave

Dr. David Scheiderer MD, MBA, DFAPA, is the Chief Medical Officer and Director of Education at Integrative Psychiatry, Inc. in Sarasota, Florida and the President of Tiberius Enterprises, Inc. in Roanoke, Virginia. An accomplished clinician, educator, and lecturer, Dr. Dave has established himself as a key opinion leader in the fields of both mainstream psychiatry and functional medicine. Dissatisfied with the patient outcomes using only conventional treatments, he began treating his patients by addressing biological imbalances with lifestyle improvements, nutrition and nutraceuticals to get better outcomes. His integrative approach provided much improved results. Dr. Dave is passionate about helping the community he serves by personalizing treatments and educating the public about mental health and healthy aging. He has formulated several of our supplements and sat on the advisory board for many others, ensuring the products we carry are based on science and experience and have the best efficacy rates and highest ingredient quality available.

Login to your account