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Vitamin B12

All articles tagged with #vitamin b12

GLP-1 Users Face Rising Nutrient Deficiencies, Prompting Urgent Care Model Shifts
health15 hours ago

GLP-1 Users Face Rising Nutrient Deficiencies, Prompting Urgent Care Model Shifts

Research indicates that GLP-1 weight-loss drugs are linked to significant deficiencies in vitamin B12, protein, and fiber among millions of users. While these medications effectively curb appetite, the resulting reduction in food intake creates a cycle of nutritional gaps that may impact nerve, muscle, and digestive health. Experts warn that integrating nutritional monitoring into clinical care is now urgent, particularly for children and older adults who show higher rates of vitamin D deficiency.

via The Independent|
#glp-1#health#nutrition
Study Links B12 Absorption Capacity to Long-Term Supplementation Success in Rural India
health-and-science1 month ago

Study Links B12 Absorption Capacity to Long-Term Supplementation Success in Rural India

A secondary analysis of the Pune Maternal Nutrition Study reveals that initial absorption capacity, measured via holotranscobalamin (holoTC) levels, predicts how well individuals respond to long-term oral vitamin B12 supplementation. In a B12-deficient rural Indian community, higher holoTC responses during an absorption test correlated with better biomarker improvements after 12 months of daily supplementation. The study highlights that absorption variability, influenced by body weight and dose, is a key factor in treatment efficacy.

via Nature|
#clinical-trials#health-and-science#malnutrition
Paternal Nutrition May Influence Offspring Health: New Study Links Low B12 and Folate to Birth Defects
health1 month ago

Paternal Nutrition May Influence Offspring Health: New Study Links Low B12 and Folate to Birth Defects

A large cohort study in China found that low levels of vitamin B12 and folate in both mothers and fathers are associated with a higher risk of birth defects in their children. The findings suggest that paternal nutritional status may play a previously underappreciated role in fetal development, potentially through epigenetic mechanisms.

via Medscape|
#birth-defects#folate#health
Modified Light Conditions Enable Spirulina to Produce Bioavailable Vitamin B12 at Beef-Level Concentrations
science1 month ago

Modified Light Conditions Enable Spirulina to Produce Bioavailable Vitamin B12 at Beef-Level Concentrations

Researchers led by Dr. Asaf Tzachor at Reichman University have successfully cultivated Spirulina that produces biologically active vitamin B12, overcoming a major nutritional limitation of the algae. By using photonic management to alter light conditions, the team created carbon-neutral biomass containing 1.64 micrograms of active B12 per 100 grams, a level comparable to or exceeding that found in beef. This is the first reported instance of bioavailable B12 in Spirulina, which traditionally contains only non-bioavailable pseudo-B12. The study, published in Discover Food, suggests that scaling this technology could provide significant amounts of the essential micronutrient, potentially addressing global deficiencies without the environmental costs of animal agriculture.

via Science Daily|
#biotechnology#reichman-university#science
Timing Your Supplements: What the Evidence Says About Iron, Vitamin D, and B12
health2 months ago

Timing Your Supplements: What the Evidence Says About Iron, Vitamin D, and B12

For most healthy adults, routine vitamin and mineral supplements offer little protection against major diseases and can cause harm if taken in excess. However, for those with diagnosed deficiencies, the timing of supplementation can significantly impact absorption. Iron absorption is highly sensitive to food and coffee, while fat-soluble vitamins like D require meals for optimal uptake. Vitamin B12 timing is less critical than the underlying cause of deficiency. Always consult a healthcare professional before starting supplements, especially if taking other medications.

via The Conversation|
#health#iron#nutrition
B12 Levels in Cancer Patients May Signal Disease Severity, Not Cause
health2 months ago

B12 Levels in Cancer Patients May Signal Disease Severity, Not Cause

New research suggests that high blood levels of Vitamin B12 in cancer patients are likely a symptom of aggressive disease rather than a cause. A large study of colon cancer patients found that elevated B12 correlated with shorter survival and advanced stages, while low levels showed mixed results. Experts caution that B12 is essential for DNA repair, but its complex relationship with tumors means it should not be viewed as a simple protective or harmful agent.

via ScienceAlert|
#biomarkers#cancer-research#health
science2 months ago

Bacteriophages Unlock Vitamin B12 to Fuel Microbial Communities

Researchers at Virginia Tech discovered that bacteriophages, viruses that infect bacteria, play a crucial role in releasing vitamin B12 into the environment. By lysing bacterial cells that produce the nutrient, phages allow it to escape and support neighboring microbes that cannot synthesize it themselves. This process, detailed in a study published in The ISME Journal, reshapes microbial community diversity and highlights viruses as nutrient recyclers in ecosystems ranging from the human gut to the ocean.

via SciTechDaily|
#bacteriophages#cell-lysis#microbiome
New Study Links Low Active B12 to Slower Brain Processing and Dementia Risk
health2 months ago

New Study Links Low Active B12 to Slower Brain Processing and Dementia Risk

A study published in the Annals of Neurology suggests that low levels of biologically active vitamin B12 may increase dementia risk, even when total blood levels appear normal. Researchers found that older adults with lower active B12 had slower cognitive processing and more white-matter brain lesions. While current guidelines recommend 2.4 micrograms daily, experts suggest this may not be sufficient for optimal brain health. B12 is crucial for energy production and cell function, and deficiency can mimic dementia symptoms. Blood tests are recommended to determine optimal levels, as 'normal' ranges may not reflect true adequacy. Dietary sources include beef liver, clams, and nutritional yeast, though supplementation may be necessary for some.

via Women's Health|
#brain-health#dementia#health
Study Links Low Active B12 to Slower Brain Processing and White Matter Lesions
health2 months ago

Study Links Low Active B12 to Slower Brain Processing and White Matter Lesions

A new study published in the Annals of Neurology suggests that low levels of biologically active vitamin B12 are associated with slower cognitive processing and increased white matter lesions in older adults, potentially raising dementia risk. While current NIH guidelines recommend 2.4 micrograms daily for most adults, experts argue this may be insufficient for optimal brain health. The findings highlight the need for higher intake or targeted supplementation, particularly for those experiencing mental fog or fatigue, though the study does not establish a definitive causal link.

via AOL.com|
#cognitive-health#dementia#health
Tiny Molecule, Big Aging Impact: Vitamin B12 and Elder Health
health4 months ago

Tiny Molecule, Big Aging Impact: Vitamin B12 and Elder Health

Vitamin B12 is needed in trace amounts but deficiency is common, especially among older adults. Aging can reduce stomach acid and intrinsic factor, impairing B12 absorption from animal foods and causing fatigue, numbness, balance or memory problems. Testing and guidance are advised for those at risk; injections treat confirmed deficiency but don’t boost energy in people with normal B12. Recent research links B12 to mitochondrial energy in muscle and aging, but it does not reverse aging.

via SciTechDaily|
#absorption#aging#deficiency
Tiny Vitamin B12, Big Aging Clues: Why Small Doses Still Matter
health4 months ago

Tiny Vitamin B12, Big Aging Clues: Why Small Doses Still Matter

Two micrograms of vitamin B12 are enough daily, but deficiency is common—especially in older adults with reduced stomach acid or absorption issues. B12 is essential for DNA and mitochondrial energy in cells, and newer research links low B12 to impaired mitochondrial energy production in muscle, which may help explain fatigue even before anemia appears. While B12 injections treat diagnosed deficiency, they don’t boost energy in people with normal B12 levels, so persistent tiredness should prompt investigation of underlying causes and absorption issues.

via The Conversation|
#absorption#aging#fatigue
B12 and Folate Levels Linked to Fatigue and Motivation in Healthy Adults
health4 months ago

B12 and Folate Levels Linked to Fatigue and Motivation in Healthy Adults

A study of nearly 600 healthy Japanese adults links low vitamin B12 and folate to higher homocysteine levels and fatigue in men, and to lower motivation in women, suggesting nutrition may influence fatigue even in healthy individuals; the findings, published in Nutrients, underscore the importance of maintaining adequate B12 and folate through a balanced diet.

via SciTechDaily|
#fatigue#folate#health
B12 and folate status linked to fatigue, hinting at a dietary route to energy
health4 months ago

B12 and folate status linked to fatigue, hinting at a dietary route to energy

A Japanese cross‑sectional study found higher homocysteine, a marker of B12 and folate deficiency, is associated with greater fatigue and lower motivation, though causation cannot be established. The findings suggest maintaining adequate B12 and folate through diet or fortified foods and supplements may help, but researchers caution about selection bias and the need for further research to confirm any causal link.

via Medical News Today|
#fatigue#folate#health