The Connection Between Dietary Protein, Stomach Acid and Vitamin B12

Extracting B12 from Food depends on Protein Sensing and Gastric Acid Production

How a Crude Clinical Experiment Exposed the Elegance of Vitamin B12 Absorption

The Ingenious Scientific Protocol That Would Never Be Approved Today

Does a Normal Vitamin B12 Level Exclude the Diagnosis of Pernicious Anemia?

The Role of Antibodies in Giving Spuriously High B12 Measurements

What Exactly are the Auto-Antibodies of the Autoimmune Disease, Pernicious Anemia?

The Antibodies That Destroy Intrinsic Factor and the Cells that Make it in the Stomach.

Vitamin B12 Deficiency is Very Common in Thyroid Disease

Atrophic Gastritis and Pernicious Anemia is Often Associated with Thyroid Disease

Are Older People More Likely to be Vitamin B12 Deficient?

Vitamin B12 Declines with Age Due to Gastric Dysfunction and is NOT a Normal Consequence of Aging

How Scientists Discovered Intrinsic Factor and Its Vital Role in Vitamin B12 Absorption

Why Vitamin B12 was Called 'Extrinsic Factor' by the Scientist Who Predicted That it Must Exist

How does a Big Molecule Like Vitamin B12 Get Absorbed from the Intestine?

Vitamin B12's Size Makes it Very Vulnerable to Being Destroyed by Gastric Acid