Reference guide
About This Reference
This site is being built as a free, source-linked guide to vitamins, minerals, foods, bioactives, herbs, safety topics, symptoms, and practical testing context. It is informational only and is not a substitute for medical care.
How to Use It
- Start with the DRI/RDI-style intake value and population selector, then read the food-source and safety context before considering supplements.
- Use symptom lists as orientation only. Deficiency and overdose symptoms overlap with many conditions and should not be used for self-diagnosis.
- Check testing markers when a nutrient has meaningful lab or clinical follow-up. Marker choice depends on symptoms, medications, health conditions, and clinician judgment.
- Use source coverage and acquired dates to understand how current and broad the reference trail is for each page.
How Trust Is Handled
- Official reference sources are prioritized first, including US, Canadian, and EU references when available.
- Clinical, safety, traditional medicine, and evidence-strength notes are separated from basic intake references so claims do not appear stronger than they are.
- Review gaps are shown openly when a page still needs Canadian, EU, clinical, or safety-source expansion.
- Affiliate or product recommendations, if added later, should remain separate from the core reference facts and include clear disclosure.
Medical Safety
Always consult a qualified medical professional before taking supplements, herbs, vitamins, minerals, or bioactives, especially during pregnancy, with chronic conditions, before surgery, or when using prescription medications.
Read the full disclaimer