Vitamin B12 (cobalamin) is an essential water-soluble vitamin required for the formation of red blood cells, the synthesis of DNA, and the maintenance of a healthy nervous system. Unlike most water-soluble vitamins, B12 is stored in the liver and deficiency can take years to develop — but when it does, the consequences can be significant.
Who is at risk of low B12 intake
Several groups are at higher risk of inadequate B12: people following vegetarian or vegan diets (B12 is found almost exclusively in animal products), adults over 50 (gastric acid production declines with age, reducing B12 absorption from food), people using proton pump inhibitors (PPIs) long term, and those with certain digestive conditions that impair absorption.
Methylcobalamin vs cyanocobalamin
B12 supplements come in several forms. Cyanocobalamin is the most common and stable form in standard supplements. Methylcobalamin is the active coenzyme form that the body uses directly — it does not need to be converted. Some people prefer methylcobalamin for this reason, particularly those who want direct biological activity. Hydroxocobalamin is the third commonly available form, used in clinical settings.
Sublingual vs capsule
B12 absorption from supplements can occur through two routes: the standard intestinal route (requiring intrinsic factor) and passive absorption through the oral mucosa. High-dose sublingual tablets are designed to exploit the second route and may be beneficial for people with impaired intrinsic factor production.
Available in Lebanon
Supplements & More carries Vitamin B12 Methylcobalamin, delivered across Lebanon with cash on delivery.