What's new

Site Updates and Changelog

A record of notable updates to this website, its guides, tools and resources. For article-by-article news, see Articles and News.

September 2026 New resource

Community outcomes survey

Launched a structured survey so cluster headache patients can report their own outcomes on the regimen, and published a first write-up of what the community-collected data shows.

Take the survey →
August 2026 New article

After the loading dose: maintenance and monitoring

A practical guide to maintenance dosing, follow-up blood tests and dose adjustments once the loading phase is complete.

Read the article →
June 2026 New tool

25(OH)D conversion calculator

Added a calculator that converts vitamin D blood-test results between ng/mL and nmol/L, alongside new explainers on the blood tests to discuss with your doctor and how 25(OH)D, calcium and PTH relate to each other.

Open the calculator →
2026 Accessibility

Translated editions in eight languages

Published translated editions of the homepage and core site in Spanish, French, German, Portuguese, Italian, Norwegian, Simplified Chinese and Hindi, so more patients can read the material in their own language.

September 2023 Guide update

Quick Start Guide refreshed

Updated the condensed Quick Start Guide to the current version for patients beginning the regimen.

Download the Quick Start Guide →
January 2017 Reference

Full reference guide for neurologists

The detailed Vitamin D3 Anti-Inflammatory Regimen preventative treatment protocol, written for patients to take to their neurologist or doctor.

Download the full guide →