LifeSource Vitamins Children’s Vitamin D3 — Supports Bone, Immune & Growth Development*
Supports bone mineralization, helps maintain healthy immune function, and contributes to normal growth & development. 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 standards for quality and science.*
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
✓ Supports bone mineralization — Vitamin D3 helps maintain normal calcium absorption and bone health in youth. NIH/PubMed — Winzenberg T, 2020
✓ Immune function support — Vitamin D has been studied for maintaining healthy respiratory immune responses in children. NIH/PubMed — Jolliffe DA, 2021
✓ Growth & development — Adequate vitamin D status associates with healthy linear growth and weight gain in children. NIH/PubMed — Erol M, 2020
✓ Muscle function — Vitamin D status relates to normal muscle strength and performance in pediatrics, especially when correcting insufficiency. NIH/PubMed — Moon RJ, 2021
✓ Oral health support — Adequate vitamin D is linked with favorable dental outcomes in children. NIH/PubMed — Slayton RL, 2020
✓ Mood & well-being (in insufficiency) — Correcting low vitamin D has been studied for supporting mood in youth. NIH/PubMed — Anjum I, 2020
Additional / Promising Evidence
✓ Seasonal wellness — Research explores vitamin D’s role in maintaining upper-respiratory wellness in children. NIH/PubMed — Martineau AR, 2018
✓ Skin barrier support — Select studies evaluate vitamin D and pediatric skin comfort; findings are mixed and evolving. NIH/PubMed — Camargo CA, 2018
University-Led & Academic Studies
✓ Supports bone mineralization — Vitamin D3 supplementation improves bone health parameters in youth (university-led trial). NIH/PubMed — Winzenberg T, 2020
✓ Immune function support — Vitamin D maintains healthy respiratory immune responses in children (academic research). NIH/PubMed — Jolliffe DA, 2021
✓ Growth & development — Adequate vitamin D status associates with healthy growth in pediatric cohorts (university studies). NIH/PubMed — Erol M, 2020
Global Evidence & Reviews
✓ Supports bone, immune & growth health — Vitamin D essential for calcium absorption, immune modulation, and normal development in children. NIH/ODS — Vitamin D Fact Sheet
✓ Maintains healthy immune responses — Vitamin D supports respiratory and innate immunity in pediatric populations. NIH/PubMed — Martineau AR, 2017
✓ Contributes to normal growth & development — Vitamin D status linked to optimal bone and overall growth in youth. Review Evidence
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
- Vitamin D3 (Cholecalciferol) — Supports calcium absorption, bone mineralization, immune function, and normal growth in youth. (NIH/PubMed — Winzenberg T, 2020)
Brief Benefit Bullets
- Helps maintain normal calcium absorption & bone mineralization*
- Supports healthy immune function*
- Contributes to normal growth & development*
Suggested Use
Use only as directed by your healthcare provider. Children’s vitamin D needs vary by age and individual status; consult your pediatrician for personalized guidance. Do not exceed recommended intake.*
Product Specifications
- Form — Drops
- Suggested Age Range — As labeled
- Supplement Facts — See product label for serving size and amount per serving
- Quality — Third-party tested for identity, potency & purity
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. Always consult your physician before giving supplements to children.
Children’s Vitamin D3 supports bone mineralization, immune function, and healthy growth & development in youth. NIH-indexed human studies. Clinically Studied Ingredients — NIH/PubMed!*
