NOW Foods Vitamin B-12 1,000 mcg with Folic Acid (Chewable Lozenges)
Are you feeling chronically run down, struggling with mental fog, or following a plant-based diet? Your body depends on Vitamin B-12 every second of the day to turn the food you eat into clean cellular energy, build healthy red blood cells, and insulate your nervous system. NOW Foods B-12 1000mcg Lozenges combine high-potency cyanocobalamin with synergistic folic acid in an easy-to-absorb, delicious chewable lozenge designed to overcome common digestive barriers.
✓ 1,000 mcg Cyanocobalamin
✓ 100 mcg Synergistic Folic Acid
✓ High Mucosal Absorption Lozenge
✓ 100% Vegan & Vegetarian Safe
The Science of Vitamin B-12: What Does It Actually Do in Your Body?
Vitamin B-12 (known scientifically as cobalamin) is a water-soluble vitamin that plays an irreplaceable role in your fundamental biology. Unlike plants, the human body cannot produce B-12 on its own. It serves as an essential chemical co-factor for critical enzymatic reactions throughout the body:
1. Powering Your Cellular Mitochondria (Energy Production)
Vitamin B-12 is not an artificial stimulant like caffeine. Instead, it acts as a cellular spark plug. Inside your cells, B-12 is required for the enzyme methylmalonyl-CoA mutase, which converts fatty acids and proteins into succinyl-CoA. This molecule feeds directly into the Krebs cycle—your body's core engine that manufactures adenosine triphosphate (ATP), the chemical currency of human physical and mental energy.
2. Insulating Your Nerve Pathways (Neurological Protection)
Think of your nerves like electrical wiring running through your house. Without plastic insulation, wires short-circuit. In your body, that protective coating is called the myelin sheath. Vitamin B-12 is biologically necessary to synthesize and maintain this sheath. Without adequate B-12, nerve communication degrades, leading to common neurological deficiency symptoms such as tingling in the fingers and toes ("pins and needles"), memory lapses, brain fog, and muscle weakness.
3. Healthy Red Blood Cells & Preventing Anemia
Your bone marrow needs B-12 to synthesize DNA during cell division. When B-12 levels run low, red blood cells cannot divide properly. They become oversized, misshapen, and inefficient—a condition known clinically as megaloblastic anemia. Because these defective red blood cells cannot transport oxygen effectively from your lungs to your muscles and brain, severe fatigue, lightheadedness, and shortness of breath quickly follow.
Clinical Reference: According to the National Institutes of Health (NIH) Office of Dietary Supplements, Vitamin B-12 is essential for neurologic function, red blood cell production, and DNA synthesis. When dietary intake or absorption is impaired, neurological damage and hematologic deficiencies can develop silently over several months or years.
The Absorption Mystery: Why 1,000 mcg Lozenges Bypass Digestive Roadblocks
You might wonder: "The Recommended Dietary Allowance (RDA) for Vitamin B-12 is only 2.4 micrograms per day. Why does this lozenge provide 1,000 micrograms—over 41,000% of the Daily Value?"
The answer lies in human digestive physiology. Vitamin B-12 is the most biochemically complex vitamin to absorb from normal food:
How Food-Bound B-12 Gets Blocked
To absorb B-12 from animal proteins, your stomach must produce robust stomach acid to release the vitamin, followed by a specialized transport protein known as Intrinsic Factor (IF) produced by the stomach lining. Intrinsic factor binds to B-12 and carries it down to specific receptors in the terminal ileum (lower small intestine).
The bottleneck: Your body's intrinsic factor receptors saturate at just 1.5 to 2.0 micrograms per meal or dose. Furthermore, if you take antacids, have low stomach acid, or lack intrinsic factor, this pathway can fail completely.
The High-Dose Solution: Passive Diffusion
When you take a 1,000 mcg supplement, your body activates an alternative pathway: passive diffusion. Even without a single molecule of intrinsic factor, your intestinal wall and the mucous membranes in your mouth absorb approximately 1% to 2% of free crystalline B-12 directly into the bloodstream (Carmel, R., Blood, 2008; NIH ODS, 2024).
1% of 1,000 mcg equals 10 mcg of pure B-12 absorbed—more than four times the adult daily requirement! By letting this chewable lozenge dissolve slowly in your mouth, you maximize oral contact time, promoting direct mucosal uptake while delivering a reliable, doctor-recommended dose to your bloodstream.
The Synergistic Duo: Why Cyanocobalamin Meets Folic Acid
NOW Foods formulated this lozenge with precision. It contains two closely connected nutrients that rely on each other to protect your cells:
Why Cyanocobalamin?
Cyanocobalamin is the most scientifically researched and physically stable form of Vitamin B-12 in dietary supplements. Unlike other forms that rapidly degrade when exposed to heat, humidity, or ambient light, cyanocobalamin maintains full therapeutic potency on the shelf.
Once absorbed into your cells, your body cleanly cleaves the molecule and converts it into the two biologically active coenzymes: methylcobalamin (for nervous system health and methylation) and adenosylcobalamin (for mitochondrial cellular energy).
Why 100 mcg of Folic Acid?
Vitamin B-12 and Folate (Vitamin B-9) work as an inseparable biochemical team in the one-carbon cycle. Together, they convert potentially harmful homocysteine into beneficial methionine, supporting cardiovascular and arterial health.
Taking large doses of folic acid alone can dangerously hide the blood-related signs of a B-12 deficiency while nerve damage continues unnoticed. NOW's balanced ratio provides 100 mcg of folic acid alongside a dominant 1,000 mcg dose of B-12, ensuring both pathways are fully nourished without masking underlying deficiencies.
Who Benefits Most from 1,000 mcg B-12 Lozenges?
While B-12 is an everyday nutrient for everyone, clinical research and dietary data show that specific populations are at heightened risk of subclinical deficiency (Allen, L. H., Am J Clin Nutr, 2009):
✓ Strict Vegetarians & Vegans: Vitamin B-12 is naturally synthesized only by specific microorganisms and found almost exclusively in meat, poultry, fish, eggs, and dairy. Unfortified plant foods contain zero usable B-12. Reliable daily supplementation is medically vital for anyone avoiding animal products.
✓ Adults Aged 50 and Older: As humans age, the stomach lining naturally thins—a common condition called atrophic gastritis. This reduces the secretion of hydrochloric acid required to separate B-12 from animal proteins. The National Academy of Medicine recommends that all adults over 50 obtain the majority of their B-12 from fortified foods or crystalline supplements.
✓ Individuals Taking Acid-Suppressive Medications: Long-term use of proton pump inhibitors (PPIs like omeprazole), H2-receptor blockers (like famotidine), or antacids significantly suppresses gastric acid, drastically impeding the body's natural extraction of dietary B-12.
✓ Patients Taking Metformin: Metformin, a widely prescribed blood sugar medication, is well documented in clinical literature to impair calcium-dependent membrane uptake of the B-12-intrinsic factor complex in the ileum, frequently leading to progressive B-12 depletion over time.
✓ Those with Digestive or Malabsorption Issues: Individuals with celiac disease, Crohn's disease, ulcerative colitis, or previous bariatric/gastric surgery have compromised absorptive surfaces, making high-dose passive diffusion lozenges the preferred daily nutritional strategy.
Important Medical Precaution: Individuals with rare Leber's hereditary optic neuropathy should not take cyanocobalamin, as it can worsen optic nerve atrophy. If you are pregnant, nursing, taking prescription medications, or have serious kidney disease, always consult your physician before beginning a high-potency regimen.
Uncompromising Purity: NOW Foods Lab Testing & Strict Contaminant Constraints
Not all supplement brands are created equal. The dietary supplement industry is flooded with private-label resellers who simply repackage powders without rigorous verification. NOW Foods is fundamentally different. Operating out of state-of-the-art facilities in Illinois and Nevada, NOW conducts over 16,000 to 19,000 individual laboratory tests every single month across raw materials and finished products.
ISO/IEC 17025:2017 Accredited Labs
NOW's in-house analytical and microbiological testing laboratories hold formal ISO/IEC 17025 accreditation from the American Association for Laboratory Accreditation (A2LA). This prestigious benchmark confirms that their testing methods, equipment calibration, and scientific staff meet the exact standards required of elite forensic and pharmaceutical laboratories.
ICP-MS Heavy Metal Screening
Using advanced Inductively Coupled Plasma Mass Spectrometry (ICP-MS), NOW screens raw ingredients for heavy metal contamination down to parts-per-billion (ppb). Every lot is verified for strict limits against toxic elements: Lead (Pb), Arsenic (As), Cadmium (Cd), and Mercury (Hg), ensuring safety thresholds that routinely surpass FDA mandates and meet stringent California Proposition 65 standards.
HPLC Potency & Identity Verification
Through High-Performance Liquid Chromatography (HPLC) and Ultra-High Performance Liquid Chromatography (UHPLC), NOW chemists verify the precise molecular identity and concentration of cyanocobalamin and folic acid. This guarantees that the 1,000 mcg stated on the label is exactly what is delivered to your body, through the very last day of expiration.
Microbial & Pathogen Screening
Every production run undergoes comprehensive microbiological screening. Automated Polymerase Chain Reaction (PCR) and traditional culture assays confirm the total absence of harmful pathogens, including Salmonella, Escherichia coli, and Staphylococcus aureus, alongside rigorous yeast, mold, and aerobic plate counts.
Third-Party GMP Certified: NOW holds an 'A' rating from the Natural Products Association (NPA) Good Manufacturing Practices (GMP) program and maintains comprehensive UL (Underwriters Laboratories) National Brand Certification, confirming sanitation, process validation, and batch traceability from seed to shelf.
We believe in 100% label transparency. Double-checked against NOW Foods' official manufacturing specifications (Product SKU: N0466 / 0466, UPC: 733739004666):
Supplement Facts
Serving Size: 1 Lozenge
Servings Per Container: 100 (also available in 250 lozenges)
Amount Per Serving
% Daily Value
Folate 167 mcg DFE (100 mcg folic acid)
42%
Vitamin B-12 (as Cyanocobalamin) 1 mg (1,000 mcg)
41,667%
Complete Inactive Ingredient Listing & Functions:
Other Ingredients: Fructose (natural fruit sugar for light sweetness), Microcrystalline Cellulose (plant-derived fiber that holds lozenge form), Sorbitol (natural sugar alcohol for smooth dissolution), Natural Flavors (berry profile), Stearic Acid (vegetable source tableting lubricant), Magnesium Stearate (vegetable source flow agent), and Silicon Dioxide (natural mineral to prevent moisture clumping).
Allergen Statement: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Pet Warning: Contains Sorbitol. While completely safe for humans, sorbitol and sugar alcohols can cause gastrointestinal distress or toxicity in household pets (especially dogs). Keep tightly sealed away from animals.
Real-World Usage Guide: How to Get Maximum Results
Taking your supplement correctly makes all the difference in absorption efficiency. Here are clear, practical directions for daily use:
How to Take
Place 1 lozenge on your tongue or under your tongue (sublingually) once daily. Allow it to dissolve slowly in your mouth, or chew thoroughly before swallowing. Dissolving allows the active B-12 to linger against your oral mucosa for immediate passive diffusion.
Best Timing
Take your B-12 in the morning or early afternoon with breakfast or lunch. Because B-12 fuels cellular energy pathways, taking it late in the evening may cause mild restlessness or disrupt sensitive sleep cycles in some individuals.
Storage & Freshness
Store your bottle in a cool, dry place after opening. Do not remove or consume the small non-toxic silica freshness packet kept inside the bottle, as it protects lozenges from ambient atmospheric humidity.
Natural Color Variation: Lozenges may exhibit minor natural variations in pink or speckled coloration from batch to batch due to raw ingredient characteristics. This has zero impact on potency or product efficacy.
The VitaNet Difference: Why Buy from an Independent Specialist?
When purchasing dietary supplements, where you buy matters just as much as what you buy. Giant e-commerce marketplaces often suffer from unverified third-party sellers, counterfeit goods, and overheated warehouses that degrade heat-sensitive vitamins.
Your Trusted Partner in Wellness Since 1995
✓Over 31 Years of Hands-On Industry Experience: Founded in 1995 as an independent, family-owned business in Hartville, Ohio, VitaNet®, LLC brings deep foundational knowledge of human biochemistry and nutrition directly to online customers[cite: 1].
✓Unconditional 100% Money-Back Guarantee: We stand fully behind every product we sell[cite: 1]. If you are unsatisfied for any reason, we offer an unconditional 100% refund on the purchase price and we even pay the return shipping cost—whether the bottle is opened or unopened[cite: 1]!
✓BBB A+ Accredited Business: We maintain an A+ rating with the Better Business Bureau, reflecting over three decades of ethical customer service, real human telephone support, and verified business integrity[cite: 1].
✓Direct-from-Manufacturer Authenticity: All NOW Foods products are shipped fresh to our climate-controlled retail facility in Hartville, Ohio[cite: 1], ensuring you receive maximum potency well before product expiration dates.
Have a question about your order or nutritional routine? Speak with our knowledgeable team directly at (330) 877-8786 or toll-free at 1-800-877-8702[cite: 1].
Frequently Asked Questions (FAQ)
Why do I need a 1,000 mcg lozenge if the Daily Value is only 2.4 mcg?
The human digestive system absorbs low dietary doses of B-12 using intrinsic factor, but this pathway saturates at roughly 2 micrograms. A 1,000 mcg dose utilizes an independent backup system called passive diffusion, where roughly 1% to 2% (10 to 20 mcg) passes directly through intestinal and oral membranes. This guarantees your cells receive more than enough usable B-12 even if your digestion is compromised by age, low stomach acid, or medications.
How does letting the lozenge dissolve in my mouth help absorption?
Holding the lozenge in your mouth until dissolved allows free B-12 molecules to contact the rich sublingual and buccal blood vessels in your oral mucosa. This delivers a portion of the vitamin directly into circulation before it encounters stomach acid, while the rest is swallowed for passive intestinal absorption. It is also an ideal alternative for anyone who struggles with swallowing large pills.
Why does NOW Foods use Cyanocobalamin instead of Methylcobalamin?
Cyanocobalamin is the most shelf-stable, light-resistant, and heavily researched form of Vitamin B-12. Once absorbed, your body converts cyanocobalamin into both methylcobalamin (needed for nerve function and homocysteine metabolism) and adenosylcobalamin (needed for mitochondrial energy production in muscles and organs). This provides full-spectrum biochemical support.
Why is Folic Acid included in this formula?
Vitamin B-12 and Folic Acid (Vitamin B-9) work hand-in-hand in red blood cell development and homocysteine regulation. Taking high doses of folate alone can dangerously mask symptoms of a B-12 deficiency. By pairing 100 mcg of folic acid with 1,000 mcg of B-12, NOW ensures synergistic blood and cardiovascular support while maintaining complete nutritional safety.
How does NOW Foods test this product for heavy metals and purity?
NOW Foods tests every batch in their ISO/IEC 17025 accredited in-house laboratories, conducting over 16,000 tests every month. They utilize Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to screen for heavy metals (lead, arsenic, cadmium, mercury) down to parts-per-billion, HPLC to verify active vitamin potency, and automated microbial testing to screen against pathogens like Salmonella and E. coli.
Is 1,000 mcg safe to take daily? Can I take too much Vitamin B-12?
Yes, 1,000 mcg daily is widely recognized as safe. Because Vitamin B-12 is water-soluble, your body uses what it needs and safely excretes excess amounts through urine. The National Academy of Medicine has established no Tolerable Upper Intake Level (UL) for Vitamin B-12 due to its exceptionally low toxicity profile.
Are these lozenges vegan and allergen-free?
Yes. NOW B-12 1000 mcg Lozenges are 100% vegetarian and vegan. They are formulated without wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients, and produced in a third-party certified GMP facility.
What is VitaNet's return policy on NOW B-12 lozenges?
VitaNet®, LLC offers an unconditional 100% money-back guarantee on all products[cite: 1]. If you are not completely satisfied, we provide a full refund of your purchase price and we even pay the return shipping cost—whether the bottle has been opened or remains unopened[cite: 1]!
