Tag: vitamin B12
How vitamin B12 absorption works: two competing pathways explain why high-dose pills can rival injections
Vitamin B12 is absorbed via two pathways: intrinsic factor, which saturates at 1.5 µg per dose, and passive intestinal diffusion,…
Vitamin B12 deficiency hospitalizations surge 32% in Brazil: a warning for high-income health systems
Hospital admissions for vitamin B12 deficiency rose 32% in Brazil (2016–2023) across multiple organ systems, despite routine testing. Functional neurological…
Iron, folate, and B12: the three nutrients that build your blood
Iron, folate, and vitamin B12 form an integrated physiological network essential for red blood cell production and oxygen transport. Deficiency…
Iron, Folate, and B12: The Three Nutrients Your Blood Cannot Live Without
Red blood cells depend on three essential nutrients—iron, folate, and vitamin B12—to survive and function. Deficiency in any single nutrient…
Brain’s Energy Crisis: Why B Vitamins and Micronutrients Matter for Cognitive Function
The brain consumes up to 50% of body energy in children and ~20% in adults, a metabolic demand met only…
The B-Vitamin Methylation Triad: Why B12, Folate, and B6 Work Together
Vitamins B12, folate, and B6 function as an integrated metabolic system regulating one-carbon metabolism, DNA synthesis, and cardiovascular health. While…
Vitamin B12 Requirements Increase with Age: New Guidelines for Older Adults
New research highlights the critical importance of vitamin B12 for older adults, who may require higher amounts due to decreased…
High-Dose Vitamin B12 Supplements May Increase Cancer Risk, New Research Suggests
New research reveals that extremely high vitamin B12 levels from supplements may increase cancer risk, challenging the "more is better"…