Cyanocobalamin is a form of vitamin B12 derived from cyanide and should be avoided
Hum Immunol (2022) 83(1):8698
This suggests that while oral forms provide gastroprotective effects through local action, systemic therapeutic benefits require higher concentrations
Source: Wikipedia Ingredients analysis Palm oil content unknown Unrecognized ingredients: quality-purity-potency-kirkland-signature-vitamin-b12-is-a-factor-in-the-maintenance-of-good-health-and-helps-the-body-to-metabolize-carbohydrates, at, vhelps-to-produce-red-blood-cells-helps-to-prevent-vitamin-b12-deficiency-non-gmo-no-starch-sweeteners, preservatives-vegetari-dosage, adults-19-years-and-older, dissolve-1-tab-der-the-tongue-once-daily, no-lactose-no-icial-each-tablet-contains, medicinal-ingredients-vitamin-b12, methylcobalamin, 1200-mc-non-medicinal-ingredients, alphabetical, croscarmellose-sodun-cospovidone, dimalic-acid, stewvg, vegetable-magnesium-stearate, warning, consult-a-health-care-practitioner-prior-to-use-if-you-are-pregnant-and-breastfeeding, store-between-15c-and-25c, out-of-the-reach-of-children-made-in-canada, fabrique-au-canada-vendor-1-888-446-8874-nutricorp-international, windsor-ontario-n8w-5b5-k2e-1c5, faisant-affaire-au-quebec-sous-le-nom-les-entrepots-costce-do-not-use-if-seal-under-cap-is-broken, manufactured-by, fabrique-par, uaux-for, pour, costco-wholesale-canada-ltd, 415-west-hunt-club-road, ottawa-onta-www-costco-ca-npn-80081901 Some ingredients could not be recognized
