Policies & transparency

Terms of Use

The terms that apply when you use this educational resource.

Purpose and scope

This website provides general education about vitamin D. By using the resource, you agree to use it lawfully and in accordance with these terms. If you do not agree, please discontinue use.

Medical information

Content does not diagnose, treat, or prevent an individual’s condition and does not create a clinician–patient relationship. Your medical history, medications, lab results, and local guidance may change what is appropriate for you. Read the Medical Disclaimer.

Content and permitted use

You may read and share links to the resource for personal, noncommercial educational purposes. Reproduction, republishing, or commercial use of substantial original content requires permission. Third-party studies, images, trademarks, and other materials remain subject to their respective owners’ rights.

Accuracy and availability

We aim to explain evidence carefully, but research and guidance change. Content may be updated, corrected, or removed, and uninterrupted access is not guaranteed. Check the source and review date when a decision depends on current information. Report a potential error through our contact page.

External websites and products

External links provide context or product information. Third-party websites control their own content, terms, purchases, and privacy practices. Product links do not establish that a product is appropriate for every reader. Our publisher relationship is described in the commercial disclosure.

Responsible use

Do not interfere with the website, attempt unauthorized access, submit unlawful material, or use the resource to impersonate a healthcare professional or misrepresent its content. Please avoid including sensitive medical information in correspondence.

Your legal rights and changes

These terms do not exclude rights or remedies that cannot lawfully be excluded. We may revise the terms and will update the date shown above. Questions may be sent to health@nutritionn.com.