













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
-
Mackenzie Warfield
> 3 dayMy B12 levels were off. After 4 days of taking this I felt 100% better!! I highly recommend this brand!
-
Achint
> 3 dayThese are 1000 mcg pills. These are Lozenges which means that they can be chewed or dissolved in the mouth. I felt they are little too big for me to keep under the tongue, so I keep it in the mouth and it gets dissolved just fine. These have a lemon flavour, which is sweet and not bitter. I did not feel any after-effects or discomfort from the tablets. VITAMIN B12 DEFICIENCY Vitamin B12 is important for functioning of brain and nervous system. It plays vital roles in fat and protein metabolism, hemoglobin and red blood cell production, DNA synthesis and nerve maintenance and repair. Some of the symptoms of vitamin B12 deficiency include fatigue, lethargy, depression, poor memory, breathlessness, headaches, and pale skin. If ignored for too long, Vitamin B12 deficiency can cause severe and permanent damage. Since Vitamin B12 effects the brain function it can also effect the mood and low levels of vitamin B12 is also linked to depression and paranoia. DOSAGE Recommended Dietary allowance for Vitamin B12 varies with age, whether person is pregnant, or nursing, if there is a condition that needs to be treated or if a person is healthy. Usually for healthy adults the dosage is considered to be 2.4-4.0 mcg per day irrespective of which type of B12 (cobalamin) is being taken. However, for people having vitamin B-12 deficiency the doctor may prescribe higher doses. Since Vitamin B12 is water soluble, so excess Vitamin B12 is removed by the body (and doses upto 500-1000 mcg wont cause side-effects). There are no Upper intake levels suggested, however, if a person ends up in taking extremely high amounts of B-12 body will start using more water to purge the excess B12 out of body and may start showing the symptoms of overdose such as flushing of the skin, increased thirst, excessive urination and diarrhea. ARE THESE PILLS VEGAN The information on the bottle says that these are vegan and does not contain wheat, glutten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts. Usually Vitamin B-12 is synthesized by bacteria found in animals, so B-12 is found in sources such as seafood, beef, poultry, eggs and milk or other dairy products. For people following strictly vegetarian diet, they might have Vitamin b12 deficiency and these pills seems to be a good fit for them. Also, while reading up on these pills I came across some interesting information on several web-sites about these vitamins and why are they named so. WHY IS VITAMIN B NAMED SO Vitamin B has an interesting history. In the 19th and early 20th century scientists were looking into a disease called beriberi (whose symptoms included weakness and loss of feeling in the feet and legs, edema of the trunk, difficulty in breathing etc.) Several researchers had observed that this disease was related to rice diet. It wasnt until Adolphe Vorderman (a medical inspector for prison) noticed that prisoners who had a diet of mostly brown rice had significantly less cases of beriberi than the prisoners who had diet of mostly white rice. After this several scientists were trying to separate the compound in brown rice that was responsible for preventing beriberi. A polish scientist named Casimir Funk claimed to have separated that compound and named it vitamine by combining vital amines (because it contained an amino group.) Though it was realized later that he was not completely successful in isolating the active compound from rice.It was American biochemist Elmer McCollum who was successful in doing that. Since they did not understood the complete chemical composition of the compound yet, so compound was give a generic name factor B. He had also named another compound he had discovered as factor A. However, scientific community needed a batter names than water soluble factor B (or fat-soluble factor A) so they adapted Funks nomenclature and naming them as Vitamin A, Vitamin B. The e at the end of vitamine was removed because not all compound contained animo groups and one of the rules of nomenclature mentioned naming a neutral substance of undefined composition ending in in. So the name Vitamin was adopted by scientific community and most of the new compounds were named similarly e.g. Vitamin C, Vitamin D until their complete chemical composition could be determined (some exception exists such as Vitamin K which was derived from German word Koagulation (coagulation) since this compound was a prerequisite for blood coagulation) Though even after determining the complete chemical composition of Vitamins, we still call them as Vitamin because it is easier to remember them instead of the chemical term. WHY IS VITAMIN B12 NAMED SO After further research it was found that what was earlier thought to be single vitamin was in-fact chemically distinct compounds that occurred in the food together. All these compounds were given numbers e.g. Vitamin B9 is folic acid. Vitamin B12 is a compound that contains the essential mineral cobalt. There were several Vitamin B discovered, however it was late found that only few of the Vitamin Bs are actual vital: Vitamin B1, B2, B3, B5, B6, B7, B9, and B12. Supplements that contain all these are sold as Vitamin B complex. WHAT IS METHYL B12 Vitamin B12 is also called cobalamin, which refers to compound that have cobal ion in the middle. Depending upon to which component cobalt is attached to it is named differently (Cyanocobalamin, Hydroxocobalamin, Adenosylcobalamin, and Methylcobalamin) Methylcobalamin contains cobalt joined with Methyl IS METHYL B12 SPECIAL The bottle mentions that Methyl B12 is superior form of B12. I am not sure of if the body gets more benefits from this form of B12, but Adenosylcobalamin, and Methylcobalamin are the forms of B12 that naturally occur in the body. So the body doesnt have to covert this form of vitamin B12 and can be absorbed easily.
-
foster
Greater than one weekI take these every day and I’ve noticed a huge difference in my lifestyle they are very tasty and actually work really well and much cheaper than buying at stores
-
Katherine
Greater than one weekIm not a fan of supplements because they arent regulated, but as a vegetarian (who is mostly vegan), my doc tested my B12 and I was very low. As much as I like nutritional yeast, I didnt want to put it on everything I eat, so I had to supplement. I liked the idea of a methyl variation (rather than cyanocobalamin), so I gave it a shot. Ive been taking these almost daily (Im not religious about it) for the past 5 years. After one year of semi-regular use my B12 was in the very low side of normal range, up from a severe deficiency, and for the past handful of years my B12 is in the middle-ish of the normal range. So, it does seem to be doing what it says it does.
-
Quil 1964
> 3 dayTaken after other pills it leaves a good taste. Have used for a long time and aint looking back.
-
Annie A
Greater than one weekThis product has been my best friend as I struggle with bad health. This has not only help my health but my hair is growing thick and long too.
-
K.Milby
> 3 dayI got my blood tested and my B12 is high... it used to be really low. I am not sure my body (Ihave MTHFR issues) absorbs B vitamins well but this is absolutely helping me. I highly recommend them.
-
JayDubya
> 3 dayI have used only one bottle of 100 lozenges so far but I am satisfied with the price, the quality of the B12, the taste and the life of the product in use. The only drawback is that they tend to take a long time to dissolve under my tongue and when they do, they are grainy at the end. That is a drawback, but not a problem for me. They are almost tasteless also, which I believe is good (supposed to be lemon flavored, but I cant taste it for the most part - that is fine with me). I bought several bottles of them - Ill update if they dont keep. I had tried another brand and found that they took on moisture in an area like Houston, TX with high humidity. These do not seem to be bothered as much because they dont dissolve as rapidly as the others (although I havent been to Houston since I got them). My switch, however, was a good move I believe. These are also half the price, though they are 4 times as large in size as the other brand.
-
Candice
> 3 dayThese are great for anyone with suspected difficulty in absorbing B12 (due to many factors including digestive issues, MTHFR gene variations, etc.). I decided to start on a low dose to avoid any possible negative side effects, so for the first 2 or so weeks I cut the tablets into fourths and took one of the fourths per day. The tablets are not scored, but are large enough that they are relatively easy to cut with a sharp knife. I have successfully cut them into halves and fourths. After a couple of weeks I bumped up to a half tablet, and after a couple more weeks I bumped up to one full tablet. I have been taking these for a little over a month now and havent noticed any significant positive or negative effects. However, since I have MTHFR variations, I feel that it is worth supplementing with methyl B12. If you use these properly (place the tablet under your tongue without chewing), a full tablet will take a long time to dissolve. I usually keep it under my tongue to dissolve for as long as I can stand (5-10 minutes) and then chew the rest and rub the chewed powder part on my gums (the mucus membranes throughout the mouth can absorb the B12, not just under the tongue). Next time, I will probably order the 5000 mcg tablets and cut them into fourths since that is cheaper than buying the 1000 mcg tablets (although these are already a reasonable price).
-
jasmaine
> 3 dayTried this brand a couple of years back. Implemented this brand again since I’ve embarked on a whole food plant based diet. This was much cheaper than the whole food products as well as more quantity. Will update for quality or other issues. But I liked this product when I did take it a couple years back.