The short version
- One chewable tablet per serving, 100 per bottle, each with 1,000 mcg of vitamin B12 as methylcobalamin (41,667% of the Daily Value, per the label).
- $11.92 for 100 tablets on Sep 30, 2026: about $0.12 per labeled serving ($11.92 ÷ 100).
- The format trade-off is the sweetener: xylitol is the first "other ingredient". It is sugar-free for you and, per the FDA, dangerous for dogs.
A week in the organizer
1 chewable tablet per labeled serving · one bottle ≈ 100 days at that serving
- MON
- TUE
- WED
- THU
- FRI
- SAT
- SUN
The label reads "Adults take 1 chewable tablet once a day or as directed by your qualified healthcare professional." The strip draws that serving; it is not our suggestion to take it.
What the label shows
We read the Supplement Facts panel from the label images on the Amazon listing for the 100-count lemon bottle (ASIN B002FJW3ZY) on September 30, 2026, and matched it against the same panel on Jarrow's own product page. The listing now calls these "Chewable Tablets"; older Jarrow bottles used the word lozenges. Serving size is 1 tablet.
| Nutrient | Per serving | % Daily Value | What to know |
|---|---|---|---|
| Vitamin B12 (as methylcobalamin) | 1,000 mcg | 41,667% | The only nutrient on the panel. The percentage implies a Daily Value of 2.4 mcg (1,000 ÷ 2.4 ≈ 417 times), the same figure as the adult RDA on MedlinePlus. |
Other ingredients, in label order: xylitol, microcrystalline cellulose, stearic acid (vegetable source), natural flavor, magnesium stearate (vegetable source), citric acid and silicon dioxide. The label adds: "No wheat, gluten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts or sesame." Its warning asks you to consult a healthcare professional before use if you are pregnant, nursing, under 18, taking medication or have a medical condition, and to keep the bottle out of children's reach. Storage line: "Store in a cool, dry place."
The front of the bottle carries a round badge and a structure/function statement about cellular processes, both marked with the asterisk that points to the FDA disclaimer. Those are the manufacturer's words, not a finding of ours. One oddity worth knowing: the "Directions" field in the Amazon listing text says "Adults take 1 capsule 1-2 times a day during or shortly after a meal", which does not match the chewable label. Follow the label on the bottle you receive.
What the format changes
A chewable is still a tablet. On this site a chewable goes in the tablet compartment: a pressed tablet you chew instead of swallow whole. Jarrow's listing images give the tablet diameter as 11.11 mm and show pale pink tablets with darker specks. Chewing removes the swallowing question that comes with larger multivitamin tablets such as Garden of Life Women's Once Daily.
Sweetened, but not with sugar. A chewable has to taste acceptable, so it needs a sweetener and flavor. Here that is xylitol (listed first, so it is the largest other ingredient by weight) plus natural lemon flavor and citric acid for tartness. The panel declares no sugars and no calories. Gummies solve the same taste problem with sugar or sugar substitutes and usually need several pieces per serving; compare our gummies vs. tablets guide.
Xylitol and pets. The FDA's consumer page on xylitol lists "children's and adult chewable vitamins" among products that may contain it, and warns that xylitol can cause a rapid, potentially life-threatening drop in blood sugar in dogs [4]. A bottle of lemon chewables on a low shelf is a pet-safety question as well as a child-safety one.
One nutrient, one piece, high amount. A single-nutrient chewable can carry far more of that nutrient than a multi does. Compare the 5 mcg of B12 in the Garden of Life tablet with the 1,000 mcg here. The format makes a large amount easy to take; it does not tell you whether you need it.
Vegan. The listing and packaging say "vegan & non-gmo", and the stearic acid and magnesium stearate are both marked vegetable-source. There is no gelatin or shell to worry about.
What the evidence says about the nutrient
MedlinePlus says vitamin B12, like the other B vitamins, is important for protein metabolism, helps in the formation of red blood cells and in the maintenance of the nervous system [2]. It lists the RDA for adolescents and adults as 2.4 mcg a day (2.6 mcg in pregnancy, 2.8 mcg while breastfeeding) [2]. That page does not list an upper limit for B12. MedlinePlus also notes that B12 is the exception among water-soluble vitamins because the liver can store it [3].
B12 is found naturally in animal foods (fish, meat, poultry, eggs, dairy) and is not present in plant foods unless they are fortified. MedlinePlus lists people over 50 and people who follow a vegetarian or vegan diet among the groups more likely to run low, and advises talking with a health care provider about B12 supplements [2]. We are not suggesting anyone take this product; that conversation is the one to have first.
What "methyl" means. Methylcobalamin is one chemical form of B12; cyanocobalamin (which MedlinePlus gives as an alternative name for the vitamin) is the other common supplement form. Jarrow's listing says research suggests methyl B-12 is better retained than cyanocobalamin. The government pages we opened do not make that comparison, so we do not repeat it as a finding. Our methylated guide covers what the word does and does not tell you.
The label itself asks anyone who is pregnant, nursing, under 18, taking medication or managing a medical condition to talk to a healthcare professional first. Keep the bottle away from children and dogs: the tablets look and taste like candy, and they are sweetened with xylitol.
Price and where it is sold
On September 30, 2026 the Amazon listing showed $11.92 for the 100-count lemon bottle, in stock, shipped and sold by Amazon.com. At one tablet per serving that is about $0.12 per labeled serving ($11.92 ÷ 100). The listing marked the item non-returnable for food-safety reasons. For comparison, Jarrow's own site sold a two-bottle pack that day rather than a single bottle. Prices move; read this as a dated observation. See the listing on Amazon. As an Amazon Associate we earn from qualifying purchases.
Seals: the packaging shows a Non-GMO Project Verified mark and says "vegan & non-gmo". We did not confirm the Non-GMO Project listing in the certifier's directory, and no contents-testing seal (such as USP or NSF) appears on the label.
Who should look elsewhere
- Anyone under 18, pregnant, nursing, on medication or managing a condition: the label asks you to check with a healthcare professional first.
- Households with dogs that get into bags and cabinets may want a non-xylitol format and careful storage either way.
- If you already take a multivitamin with B12, such as Thorne Basic Nutrients 2/Day, add the amounts together before adding a separate B12.
Sources
- Amazon.com. Jarrow Formulas Methyl Vitamin B-12 1000 mcg, 100 Chewable Tablets, Lemon (ASIN B002FJW3ZY): listing text and Supplement Facts label images. Viewed Sep 30, 2026 (link in the price section).
- MedlinePlus (U.S. National Library of Medicine). Vitamin B12. Accessed Sep 30, 2026. link
- MedlinePlus. Vitamins. Accessed Sep 30, 2026. link
- U.S. Food and Drug Administration. Consumer update on xylitol and dogs. Accessed Sep 30, 2026. link
- Jarrow Formulas. Methyl B-12 1000 mcg Lemon Chewables product page (Supplement Facts, other ingredients, warnings). Accessed Sep 30, 2026. link
This entry is educational and is not medical advice. Statements about dietary supplements have not been evaluated by the Food and Drug Administration. Ask a qualified clinician or pharmacist before starting any supplement, especially if you are pregnant, nursing, have an existing condition, or take medication.