Look up a substance
Function, origin, food sources, low and high values and the main reference appear on one page.
Understand what is happening inside your body.
A visual library for vitamins, minerals, amino acids, hormones and lab values, with sources, clear explanations and private browser-based inputs.
- 84
- substances
- 52
- lab values
- 39
- symptom rules
- no
- account
MineralMg²⁺ · essential
MagnesiumEnergy · nerves · muscles
Three routes to a clearer question.
Look up a substance, organize a lab result or sort symptoms before a medical visit. Each route explains; none diagnoses.
Choose a substance
Organize lab values
Enter the number, unit and reference interval from your report. The display describes position, not cause.
Prepare a medical visit
Sort symptoms and context. Red flags stay separate from possible lab questions.
From vitamin D to cortisol.
The library pairs visual substance pages with traceable references. No entry stops at a decorative graphic.
The full evidence picture matters.
We prioritize systematic reviews, meta-analyses, evidence-based guidelines and official references. Search strategy, risk of bias, applicability and certainty remain part of the appraisal.
Each substance page links its main source. Review date and editorial status remain visible. A single study never replaces the wider evidence base.
View sources- 1Systematic reviews
- 2Randomized trials
- 3Cohort studies
- 4Observational data
Your health data belongs to you.
Lab values and symptom selections are processed locally. Without local saving, they disappear when the page reloads. The site does not diagnose or recommend doses.
- no automatic cloud sync
- no account required
- no automated diagnosis
- sources beside the content
What the platform does. Where it stops.
Can the site diagnose a deficiency?
No. A value outside an interval can have many causes. The result helps organize information and prepare for a medical visit.
Why prioritize meta-analyses?
They can combine the discoverable evidence base using predefined methods. Their quality still depends on the included studies and methodology.
Are my lab values uploaded?
No. Lab and symptom inputs are processed locally in your browser. Only the optional study suggestion form sends the information entered there to the server.
Start with the substance on your mind.
The library is free to use and works without an account.