All articles tagged with #b12
Elevated blood B12 is linked to poorer survival and more advanced disease in cancers (notably colon cancer), but researchers caution the association is likely not causal; tumors can disrupt B12 storage/transport and drive higher levels, while high dietary intake shows a U‑shaped link with cancer risk. Overall evidence is inconsistent, suggesting B12 may be a disease biomarker rather than a driver.
Vitamin B12 is essential for the production of red blood cells and DNA, and its deficiency can lead to anemia and complex health issues. Elderly people, those with alcohol issues, vegetarians, and people with malabsorption issues are at higher risk of B12 deficiency. Symptoms of early stages of deficiency include nausea, vomiting, diarrhea, irritability, and long-term deficiency can lead to numbness, tingling, vision loss, impaired cognition, and memory loss. B12 can be obtained from meat, fish, poultry, eggs, and fortified dairy products, and those who cannot meet their requirements through diet are advised to take supplements.