Jarrow Formulas Extra Strength Methyl B-12 1000 mcg - Dietary Supplement - 100 Lemon Flavored Chewable Tablets - Bioactive Vitamin B-12 - Supports Cellular Energy Production, Sleep & Brain Health

(1932 Reviews)

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$10.49

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(20000 available )

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99 Ratings
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  • TchrMama2four

    > 3 day

    My husband takes these everyday with a few other vitamins. We chose this particular brand because of the type of B12 listed in the ingredients and the various levels of B12 we could order and choose from as our needs may vary. It works for my husband very well and he says he can feel the difference if he does not take one. He chews it normally to take it. I have tried taking them and do not feel a noticeable difference, even when I take it daily with consistency. We will continue to order it since it makes a difference for my husband and is a good price.

  • Kat

    > 3 day

    My doctor told me to start taking b12 because it was low and I decided to try this one. It’s affordable and tastes good and it works! My b12 in November 2020 was 246 and it went up to 559 in January 2021 while I was taking these pills

  • Beautifully Imperfect!

    > 3 day

    I think a higher dosage might be more noticeable for me, but that said, this gives me a pretty decent boost in energy, at best. Easy to chew, and the flavor is ok. Some days, I have issues with energy, so this is helpful to me, when those days come and go. No noticeable side-effects. Once I run out, Ill look into a slightly higher dosage, to hopefully see more effects. Otherwise, a pretty solid product.

  • Rebecca C

    09-06-2025

    This is my go to. It was recommended to me by my neurologist and I’ve seen a big difference since I started taking it 2yrs ago. I have the MTHFR gene mutation and some other health problems that make it where it’s difficult to not be deficient in B12. Jarrow has been a reliable brand who doesn’t cost an arm and a leg. The taste is decent, it’s easy to chew, and does the job.

  • Dwight

    > 3 day

    I noticed the difference from theses compared to the B12 plus folic acid forlmula Id stick more to there forlmula b12 rather then b12 by its self

  • ginnie

    > 3 day

    I found the pills very hard to chew. I grind them up so I dont really taste them. Because of the sickness going around the world I cant go to my Dr for a B 12 shot so I have been using these instead.

  • GlamLab

    > 3 day

    We havent been taking these for very long, about a week and a half. Thats kind of the beauty of it, I can already tell a difference. We took extra of these on our road trip along with our regular vitamins to help keep our energy up. They worked great! This brand was recommended to me by my best friend who is an avid supplement user and researcher. They were recommended to her by her regular doc and also by her brother who is a doc. The price point is spectacular which is the icing on the cake. I have taken other B-12 supplements in the past but none have had such a fast response. I plan to keep re-buying these and I would recommend them.

  • Ronald M. Chavin

    Greater than one week

    (1)Both products are extremely delicious and its difficult to resist the temptation to eat too much. (2)Both products contain 1000 micrograms of methylcobalamin per tablet and will easily and rapidly dissolve in our mouth. (3)Both products are economically priced but the Jarrow Formulas product is 11.78% cheaper per tablet than the Source Naturals product. (4)One white-colored Jarrow Formulas tablet (lozenge) is much, much larger than one pink-colored Source Naturals tablet. (5)Jarrow Formulas other ingredients: xylitol, cellulose, vegetable-source stearic acid, lemon flavor, vegetable-source magnesium stearate, citric acid, and silicon dioxide. Suitable for vegetarians and vegans. (6)Source Naturals other ingredients: mannitol, sorbitol, natural cherry flavor, stearic acid, and magnesium stearate. Conclusion: Source Naturals is better if you want just the methylcobalamin with as little as possible of everything else. Jarrow Formulas is better if you want to enjoy the extremely delicious taste of a much larger tablet (lozenge) at a slightly lower price per tablet. Color Changes: Source Naturals starts out as a tiny, very slightly pinkish, white tablet that turns moderately dark pink if left outside of the pill bottle for 3 to 12 hours. Jarrow Formulas starts out as a large tablet with the exact same, very slightly pinkish, white color. However, unlike the tiny, circular, chewable, Source Naturals tablet, the large, circular, chewable, Jarrow Formulas tablet doesnt change color much if left outside of the pill bottle for 3 to 12 hours. The pink dots on the Jarrow Formulas tablet will get darker and more noticeable after being left outside of the pill bottle for 3 to 12 hours but the original, very slightly pinkish, white color will still be the predominant color. Like other forms of vitamin B12, methylcobalamin is pink and apparently gets even pinker when these tablets react with the humidity in the air. Question: Does methylcobalamin get absorbed better than cyanocobalamin? Answer: Yes, slightly. Question: Does sublingual vitamin B12 get absorbed better than swallowed vitamin B12? Answer: Yes, slightly, but not because the skin under the tongue is any better at absorbing vitamin B12 than the skin of the small intestines, where most of the vitamin B12 absorption occurs. Sublingual merely extends the total length of the absorption zone by about 5%. To get the full benefit of that extra 5%, we would need to keep the sublingual tablet in our mouth for about 15 minutes. The large intestines cannot absorb any vitamin B12, even though plenty of vitamin B12 is always being produced in everybody [including vegans] by the bacteria inhabiting the large intestines. Question: What increases and what decreases vitamin B12 absorption? Answer: Calcium increases vitamin B12 absorption. Vitamin C decreases vitamin B12 absorption. Eating vitamin B12 together with food increases vitamin B12 absorption. THE BIG PICTURE: The human brain shrinks in size as it gets older and vegans, who tend to be deficient in vitamin B12, have the fastest rates of brain shrinkage as they get older while people who swallow vitamin B12 pills tend to have the slowest rates of brain shrinkage as they get older. Meat eaters have slower rates of brain shrinkage compared to vegans but faster rates of brain shrinkage compared to vitamin B12 pill swallowers. Aim to actually absorb exactly 6 to 9 micrograms of vitamin B12 per day to stay at the optimum blood level of vitamin B12. Therefore, my advice to the vast majority of people is: Because we can only absorb about 1.05% of the vitamin B12 that we swallow, we need to swallow one 500 microgram pill once each day or one 5,000 microgram pill once each week to end up absorbing the optimum amount.

  • SoCal Spirit

    Greater than one week

    I have been using these B-12 supplements for quite some time and I can tell you they are really awesome! They taste like pink lemonade and they dont have all the sugar and junk that other flavored B-12 supplements have. Top notch quality & taste! They really work. I have to be on high levels of vitamin B-12 so I use these in conjuction with their B-12 500 supplements and an organic B enzyme complex. I try to always choose all natural products without all the chemical additives. I truly hope this helps. If this review is helpful to you, please click yes so it can be helpful to others as well. Thank you so much for reading!

  • Tony P.

    > 3 day

    From the research I did before purchase, Im satisfied Jarrow makes quality vitamins. The taste is nice, not overwhelming and not like a kid product. I got these for my wife because she has tinnitus and they seem to be helping after two weeks of use.

We use superior science to make smarter formulas like Jarro-Dophilus Allergen Free, which is formulated with 6 well-characterized probiotic strains that have been manufactured (fermented and processed) without the use of any known major food allergens. The formula is dairy and gluten free and is vegetarian friendly. It’s also certified hypoallergenic and non-GMO by NSF. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Ratings based on results of the 2021 ConsumerLab Survey of Supplement Users.

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