A reference desk for everyday health
Most general wellness content online is a press release with a byline, or the same few sources rewritten. Pure Health Desk works more narrowly: one question at a time, read against the research, with the uncertainty left in.
About us · How we review · Medical disclaimer
Browse by subject
Vitamins & Minerals
Reference entries on the nutrients people ask about most.
Sleep & Recovery
What genuinely improves sleep quality.
Immunity
The most overclaimed category in the whole market.
Everyday Nutrition
Food-first guidance with a real evidence base.
Buying Guides
How to evaluate a product before you buy it.
Recently published
- A Practical Supplement Buying Guide: Questions for Any Label
- Everyday Nutrition: Build the Basics Before Adding a Supplement
- Immune Support Claims: How to Evaluate Them Responsibly
- Sleep Supplement Labels: What to Review Before You Take One
- Vitamin D: How Much Do You Actually Need?
How we decide what to publish
- We start from primary research — trials, systematic reviews and meta-analyses — not from other people’s articles.
- We read the methods. Sample size, duration and funding all change how much a finding is worth.
- For any ingredient we check the dose actually studied against the dose typically supplied.
- Where evidence is thin, animal-only or industry-funded, we say so.
This site is information, not medical advice. Nothing here can account for your history, medication or symptoms. Talk to a qualified clinician before changing anything. Read the full disclaimer.