I had severe B12 deficiency for many years and no prescription medication worked (in Norway it is normal to give B12 in the form of cyanocobalamin). I was advised to try methylcobalamin in higher dose than you can buy in Norway. I ordered my first box on iherb, and now I have taken this type for three years. Results off bloodwork are better than ever(I'm stable on 700-800 nmol/L). Recommend this highly! Tastes good too :) You can't overdose B vitamins since they are water soluble , the body absorbs what it needs and the excess is excreted through the urine. I recommend that you take a good B complex when you start supplementing with B12 and / or folate . This because supplementing only with B12 / folate may camouflage the lack of other B vitamins. When you have low values / lack of B12 / Folate, you will also likely have low levels of other B vitamins. Visit my iherb page to find a recommendation for a good B complex and several other recommendations and reviews. Was this review helpfull to you? Pleace press "Yes" below :) NORSK: Jeg har lidt av alvorlig B12 mangel i en årrekke og behandling med reseptbelagte tilskudd/injeksjoner har ikke virket/hatt minimal effekt. Jeg begynte og lese meg opp på dette med vitaminer og mineraler og ble gjort oppmerksom på at man kun får kjøpt B12 i form av cyanokobalamin (syntetisk B12/kjemisk fremstilt) i Norge, unntaket er muligheten for injeksjon i form av hydroksokobalamin som har noe bedre opptak. Jeg ble anbefalt av en privat lege med god kompetanse på feltet å forsøke tilskudd i form av høydose methylcobalamin. Methylcobalamin er den naturlige formen for B12 og den har høy biotilgjengelighet/godt opptak. Jeg har nå benyttet denne formen i 3 år og har stabile B12 verdier på 700-800 nmol/L. B vitaminer kan ikke overdoseres ettersom de er vannløselige, kroppen tar opp det den trenger og overskuddet skilles ut gjennom urinen. Jeg anbefaler at du tar et godt B kompleks i "bunn" når du begynner med tilskudd av B12 og/eller folat. Dette ettersom å supplere kun men B12/folat vil kunne kamuflere mangel av andre B vitaminer. Når du har lave verdier/mangel på B12/Folat vil du også sannsynligvis ha lave verdier av andre B vitaminer. Besøk min iHerb side for anbefaling av et godt B kompleks og flere andre anbefalinger og reviews :) Fant du denne tilbakemeldingen hjelpsom? Trykk "Yes" under :)
Posted by SherryB on August 17 2012 | Verified Purchase
I was not sure that I was absorbing the B-12 as this can be a problem with B-12 supplements, but I had a blood test and I rated very well on my B-12 levels that were much lower before.
Posted by iHerb Customer on January 11 2009 | Verified Purchase
I was low on B-12 and taking this gave me an instant boost in energy. It effectively raised my b-12 levels (tested by my MD) and also increased my energy. Excellent product.
Posted by Freddds-Active-B12-Folate on November 28 2006 | Verified Purchase
I and my 3 children are hypersensitive to methyl b12. Jarrow methyl b12 is generally effective within 10 minutes and is one of the most active and effective brands we have found.
Posted by iHerb Customer on July 5 2006 | Verified Purchase
Jarrow's methylcobalamin actually reversed the early stages of idiopathic peripheral neuropathy that I was experiencing. I still take it as insurance to this day. Excellent and easy to take (sublingual).
Posted by iHerb Customer on March 4 2008 | Verified Purchase
This is the best and most absorbable form of B-12; you need only take one every 2-3 days; you can allow it to either dissolve in your mouth or chew it; and it tastes delicious! :) These are not like the B-12 tabs that either hang around in your mouth seemingly forever, or dissolve instantaneously. Thanks, Jarrow Folmulas, for a very good product.
Posted by iHerb Customer on October 20 2007 | Verified Purchase
took this when i became b12 deficient. i noticed a big difference right away. now i have tons more energy and sleep better through the night. cheaper and better than a b12 shot. more convenient too. tastes much better than other brands i've tried.
Posted by iHerb Customer on July 11 2016 | Verified Purchase
First time I used it my brain fizzed - literally - and I am a meat eater! If you are a vegetarian, you really should be taking these. Even meat eaters cannot always absorb all the B12 they need from meat, so should be taking them too. My brain still gives a little fizz of welcome every single time. Is this the best brand? I don't know, as it is my first, but I do know that it is the right kind - the methyl kind, not the cyanide kind - always read the ingredients. Taste is pretty neutral. I suck mine so it dissolves slower - to minimize the brain fizz. I am not sure what it is doing (can't remember what it does), but a few prominent vegetarians have died and/or had strokes recently from lack of it, and this definitely does something.
Posted by iHerb Customer on June 19 2016 | Verified Purchase
I have been very happy with this product. It was recommended to me for stress and depression and it has been helping me with this. I have problems swallowing so the fact that these are chewable is a great relief to me.
Posted by iHerb Customer on December 3 2008 | Verified Purchase
I've been taking oral B12 for about 8 years. I've tried just about all brands, and have settled on this as my favorite. Started here... ended here.
Posted by iHerb Customer on February 16 2009 | Verified Purchase
The Methyl B12 I have used in the past was small, cherry flavored, and didn't contain xylitol. This stuff, not so much - it's huge pills/logenzes, lemon-flavored, and has xylitol. I won't be buying it again. On the good side, I lucked out to have ordered powdered L-Lysine (in the jumbo can!) during one of your buy one/get one free sales the last time, and was totally delighted with it. Reordered, and missed the sale, but it's still a great product. One out of two's okay, I guess....