Contributes to
Science-backed supplements
Vitamin D
At NFO, we believe that health supplements should be rooted in science, not guesswork. Each of our products, including NFO Vitamin D3 2000 IU, is developed based on rigorous research and clinical evidence to ensure you receive the highest quality and most effective support for your health.
What "science-backed" mean to us
Tested for Purity and Potency
Our supplements are manufactured under stringent quality controls in Norway. We ensure that each softgel meets its stated potency, free from contaminants like heavy metals or harmful bacteria, as detailed in our Certificate of Analysis.
Certificate of AnalysisClinically Validated Ingredients
Every active ingredient, including Vitamin D3 (cholecalciferol), is chosen based on clinical studies that demonstrate its safety and efficacy.
EU register of verified health claimsEvidence-Based Claims
Our product claims are transparent and backed by credible sources like the National Institutes of Health (NIH) and other globally recognized authorities. This ensures that you can trust the health benefits listed on every bottle
U.S. NIH fact sheet