Men’s Once Daily Multivitamin — Vegetarian Tablets — Supports Energy, Immunity, and Daily Vitality
LifeSource Vitamins Men’s Once Daily Multivitamin delivers a balanced, research-driven formula designed to support energy metabolism, improve immune function, and promote antioxidant defense. Each vegetarian tablet combines bioactive B-vitamins, chelated minerals, men’s botanicals, digestive enzymes, and probiotics, produced in FDA-registered, GMP-certified facilities and supported by NIH-indexed human clinical studies. Our approach focuses on efficacy, safety, and transparency — ensuring every ingredient meets LifeSource’s uncompromising standards for quality and science.* Non-GMO, gluten-free, vegetarian.
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
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. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to keep our guidance aligned with credible, evidence-based science.* Every claim is supported by peer-reviewed human RCTs or meta-analyses whenever available.
Clinically Studied Benefits
✓ Daily multivitamin supports global cognition and memory — in older adults (3-year RCT, COSMOS).
NIH/PubMed — Baker, 2022
✓ B-vitamins support energy metabolism and reduce fatigue — in adults (meta-analysis).
NIH/PubMed — Kennedy, 2020
✓ Vitamin D reduces acute respiratory infection risk — in adults (meta-analysis).
NIH/PubMed — Wang, 2024
✓ Zinc supports immune function and inflammation balance — in adults (RCT).
NIH/PubMed — Jafari, 2022
✓ Vitamins C + E reduce oxidative stress — in adults (RCT).
NIH/PubMed — Ryan, 2010
✓ Vitamin D supports bone and muscle function — in adults (review).
NIH/PubMed — Beaudart, 2017
✓ B6 + B9 + B12 lower homocysteine — in adults (meta-analysis).
NIH/PubMed — Kataria, 2021
✓ Chelated minerals improve absorption — in adults (RCT).
NIH/PubMed — Schuchardt, 2017
✓ Plant polyphenols support vascular function — in adults (RCT).
NIH/PubMed — Helm, 2023
✓ Digestive enzymes + probiotics support GI comfort — in adults (RCT).
NIH/PubMed — Madempudi, 2018
Additional / Promising Evidence
✓ Multivitamin slows cognitive aging — in older adults (COSMOS meta-analysis).
NIH/PubMed — Vyas, 2024
✓ Chelated zinc + magnesium improve absorption — in adults (RCT).
NIH/PubMed — Gandia, 2007
✓ Vitamin C improves antioxidant status — in adults (RCT).
NIH/PubMed — Mousa, 2017
✓ Tomato lycopene supports antioxidant defense — in adults (RCT).
NIH/PubMed — Story, 2018
University-Led & Academic Studies
✓ Harvard T.H. Chan School of Public Health — COSMOS trial shows multivitamin slows cognitive aging.
NIH/Harvard — COSMOS
✓ Mayo Clinic — Recommends multivitamins for nutritional gaps in men.
NIH/Mayo Clinic — Review
✓ Oregon State University Linus Pauling Institute — Validates chelated minerals for absorption.
NIH/Linus Pauling Institute — Review
Global Evidence & Reviews
✓ NIH ODS — Multivitamin/Mineral Supplements Overview.
NIH ODS
✓ NASEM — Dietary Reference Intakes (DRIs).
NASEM — DRIs
✓ EFSA — Scientific Opinions on Vitamins & Minerals.
EFSA — Opinions
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align with credible science.*
Key Ingredients
- Bioactive B-vitamins
- Chelated Minerals (Zinc, Magnesium, etc.)
- Vitamin D3 (Cholecalciferol)
- Tomato Fruit (source of Lycopene)
- Saw Palmetto (Berry)
- Digestive Enzymes + Probiotics
Brief Benefit Bullets
- Supports energy metabolism and daily vitality*
- Enhances immune function and antioxidant defense*
- Promotes bone, muscle, and cognitive health*
- Vegetarian, non-GMO, once-daily convenience*
Suggested Use
See product label for directions, or use as directed by your healthcare professional. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.
Product Specifications
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Serving Size: 1 Vegetarian Tablet
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Free From: Wheat, gluten, milk, egg, fish, shellfish, tree nuts, sesame
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Made in FDA-Registered, GMP-Certified U.S. Facility
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.
Men’s Once Daily Multivitamin Vegetarian Tablets — supports energy, immune function, antioxidant defense, and men’s wellness with clinically studied ingredients from NIH/PubMed!*
