A free AI health companion that helps you make sense of your symptoms, your labs, and your questions — using public medical research, with every answer cited. Not a doctor. A friend who reads the journals.
Free forever · No account required to start · Companion, not doctor
Is vitamin D worth taking?
Here's what the research says — not advice, just what's been studied. The USPSTFfound there isn't enough evidence that vitamin D supplements prevent fractures in otherwise healthy adults. A large 2019 trial (VITAL)found supplements didn't lower cancer or heart-disease risk in the general population.
What's right for you is a conversation for you and your doctor.
Wherever you're starting from, it's the same companion — reading the research with you, citing every answer.
Every answer traces back to a source you can open and read yourself. That's the whole trick.
Drop in your labs or genetic data, or just ask a question. No account needed to start.
Niowell searches public medical sources — PubMed, ClinVar, USPSTF and more — not its own opinions.
Plain-language answers, with every claim linked to a source you can open and read yourself.
Your questions and data stay in one place, so you can pick up where you left off and track changes over time.
A short, sample exchange — the kind of question the companion hears every day, with the citations it leans on and an offer to bring the right questions to your next appointment.
Illustration only. Not a real conversation or real test result.
CBC, metabolic, lipids, hormones
23andMe, AncestryDNA raw files
CGM exports and trends
sleep, heart rate, steps
the written report, not the scan
PDFs, screenshots, a doctor's note
You control what Niowell stores. Delete anything, anytime.
Today Niowell is a conversation. Next, a dashboard that keeps what you've learned — so the picture builds over time instead of scattering across visits and apps.
Markers tracked
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Sources cited
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Conversations
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Each bar is a marker the companion has read about with you — taller where research had more to say.
Your uploads, questions, and results laid out over time, in one place.
Watch a marker move across tests, with the relevant research beside it.
Every conversation saved, searchable, and still linked to its sources.
Take everything with you — your data is yours to keep or delete.
The dashboard helps you see and remember. It doesn't diagnose or alert — that's still between you and your doctor.
30M+ biomedical citations (NIH/NLM)
Gene–variant–condition relationships
US preventive screening recommendations
Plain-language consumer health (NLM)
Systematic reviews of clinical evidence
US public-health data and guidance
UK clinical guidance
World Health Organization guidance
Niowell shows you what the research says. It doesn't invent, interpret, or diagnose.
Niowell explains what research has studied. It doesn't diagnose, prescribe, or treat — and for anything urgent, it points you to a clinician.
No supplements to sell, no protocols, no vibes. Just what the literature actually says, cited.
Every answer shows its sources. You can open the research and check it yourself.
Niowell is for the people the system tends to skip.
Mostly healthy, no regular doctor, figuring your body out as you go.
Priced out of routine care, but still with real questions.
Moved, switched jobs, aged off a plan — and lost continuity.
When your doctor barely has time to look up from the screen.
Niowell won't replace primary care. It helps you walk in prepared — with sharper questions and the research already in hand.
We don't sell your data, run ads on it, or hand it to brokers. Not now, not ever.
Remove any file or your whole account in a click. Raw genetic files are deleted right after parsing.
Your data is portable. Take all of it with you whenever you want.
Free forever · No account required to start