Nearly 40% of Americans may have suboptimal vitamin B12 levels, with absorption problems and medication use cited as major contributors.
By yourNEWS Media Newsroom
Vitamin B12 plays an essential role in DNA and RNA synthesis, red blood cell formation, nerve integrity and the detoxification of homocysteine, a metabolic byproduct associated with inflammation when elevated. Health experts warn that deficiency in the nutrient can result in fatigue, brain fog, depression, numbness and, in severe cases, irreversible neurological damage.
Estimates suggest that close to 40% of Americans may have inadequate or suboptimal B12 levels. Those at greatest risk include older adults, vegans and vegetarians, individuals with gastrointestinal disorders such as celiac disease or irritable bowel syndrome, and patients who use acid-blocking medications or metformin. Aging-related decline in stomach acid production and intrinsic factor—a protein required for B12 absorption—also significantly increases vulnerability.
Unlike other B vitamins, vitamin B12 requires intrinsic factor, produced in the stomach, to be absorbed in the small intestine. Conditions such as pernicious anemia, pancreatic or liver dysfunction, gastrointestinal surgeries including gastric bypass, and chronic use of proton pump inhibitors can interfere with this process. Even individuals who consume animal products may experience deficiency due to impaired absorption.
Animal-derived foods such as beef, eggs and dairy are recognized dietary sources of B12. However, modern agricultural practices, including soil depletion and antibiotic-fed livestock, may influence nutrient availability in the food supply. As a result, supplementation is frequently recommended for individuals at risk.
Health advocates distinguish between two primary supplemental forms of vitamin B12: methylcobalamin and cyanocobalamin. Methylcobalamin is a bioactive form that can be directly utilized by the body. Cyanocobalamin, a synthetic alternative, contains a trace cyanide component and must be converted by the body before use. Some practitioners advise selecting methylcobalamin, particularly in sublingual or liposomal forms, which may bypass certain digestive barriers.
Additional potential sources of B12 cited by advocates include unwashed organic produce containing soil microbes, fermented foods such as traditional tempeh or kimchi in limited amounts, and fortified nutritional yeast labeled with active B12.
Testing for deficiency typically involves measuring serum B12 levels, with many clinicians considering 400–700 pg/mL to be an optimal range. Measurement of methylmalonic acid (MMA) is regarded by some as a more sensitive indicator, as elevated MMA can signal deficiency even when serum B12 appears within standard laboratory limits.
Recommended daily intake varies by population. Adults generally require 2.4 micrograms per day. Pregnant and lactating women are advised to consume between 2.6 and 2.8 micrograms daily. Due to absorption variability, vegans and vegetarians are often advised to supplement with 250–500 micrograms per day.
Observers note that nutrient depletion in soils, highly processed food consumption and chronic medication use may contribute to widespread insufficiency. They emphasize the importance of individualized testing, appropriate supplementation and attention to digestive health to maintain adequate B12 status.
A video discussing vitamin B12’s health benefits is available for viewing, providing additional information on the nutrient’s role in overall wellness.
This video is from the Holistic Herbalist channel on Brighteon.com.
Source: Natural News
Original article
Comments