Vitamin B-12 Methylcobalamin 5000 mcg — 60 Lozenges — Supports Energy Metabolism & Nervous System Health*
Lifesource Vitamins Vitamin B-12 Methylcobalamin 5000 mcg delivers high-potency, bioactive methylcobalamin in a sublingual lozenge to support energy metabolism, nervous system health, mental clarity, and healthy homocysteine metabolism. Produced in FDA-registered, GMP-certified facilities for quality assurance.*
Research Promise: At Lifesource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits (with research)
- Corrects B-12 deficiency (hematologic & neurologic) — High-dose oral cobalamin is as effective as intramuscular therapy in randomized trials of deficiency (pernicious anemia/food-cobalamin malabsorption). (Kuzminski 1998, Blood (PubMed); Cochrane Review 2018 (PMC))
- Raises serum B-12 & improves biomarkers — Oral high-dose cobalamin significantly increases serum B-12 and lowers methylmalonic acid/homocysteine vs placebo/low dose. (Vidal-Alaball 2005, RCT (PubMed))
- Homocysteine & brain atrophy (MCI subgroup) — In older adults with mild cognitive impairment and elevated homocysteine, folate+B-6+B-12 slowed whole-brain atrophy vs placebo (DB-RCT). (Smith 2010, PLoS One (PMC))
- Cognition in low-folate elders — Three-year folic acid (with stable B-12 status) improved memory and information processing (DB-RCT). (Durga 2005, Lancet (PubMed))
- Symptom relief in deficiency — Oral cobalamin regimens corrected anemia and neurologic findings comparably to injections in clinical trials. (Cochrane 2018 (PMC))
- Stress & mood in healthy but stressed adults — B-complex formulations (including B-12) reduced perceived stress and improved mood/well-being (randomized, placebo-controlled). (Stough 2014 (PMC))
Promising/Traditional (with human data & limitations)*
- Homocysteine lowering & major CVD events* — Although B-vitamins (including B-12) lower homocysteine, large outcome RCTs did not reduce major cardiovascular events. (HOPE-2 2006, N=5522 (PubMed))
- Neuropathy & methylcobalamin* — Human studies suggest benefit in some neuropathies, but dosing/forms and trial quality vary; more robust RCTs are needed. (See mixed RCTs/systematic data in PubMed; avoid disease claims without provider guidance.)
We monitor research from the world’s leading institutions — including Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge University, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, and Ohio State — to ensure our guidance remains aligned with the highest standards of credible science.*
Brief Benefit Bullets
- Powers energy metabolism for daily vitality*
- Supports nervous system health & myelin integrity*
- Promotes red blood cell formation to help prevent megaloblastic anemia*
- Helps maintain healthy homocysteine metabolism*
- Sparks mental clarity in B-12–deficient individuals*
- 3rd-party lab tested for purity & potency
Suggested Use
Place 1 lozenge under the tongue daily and allow it to fully dissolve, or as directed by your healthcare professional. Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
- Serving Size — 1 Lozenge
- Servings Per Container — 60
- Form — Sublingual Lozenge
- Free From — Non-GMO, gluten-free, vegan*
- Quality — Third-party tested for identity, potency & purity
Perfect For:
- Individuals with low B-12 or limited intake (vegans/older adults)*
- Those seeking convenient sublingual support for energy & cognition*
- Adults aiming to support healthy homocysteine metabolism*
Key Ingredients
Vitamin B-12 (Methylcobalamin) — Supports energy, nerve health, and red blood cell production; high-dose oral cobalamin regimens have RCT-level evidence for correcting deficiency. (Kuzminski 1998; Cochrane 2018)
Lifesource Vitamins — Proudly American — Since 1992
*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.
Boost energy and nervous system health with Vitamin B-12 Methylcobalamin 5000 mcg lozenges. Human-study-linked evidence (PubMed/PMC). 3rd-party tested.
