Personalized supplement recommendations
Skip the generic top-10 lists. Answer 6 short questions about your diet, lifestyle, and current cabinet — VitaCheck returns a specific keep / stop / add list with dose, timing, and an evidence grade on every recommendation. We sell no supplements of our own.
Get my recommendationsWhat VitaCheck actually checks
- Duplicates — nutrients your diet already covers, or two bottles doing the same job (multi + B-complex, fish oil + krill oil, whey + BCAAs).
- Over-the-limit stacking — totals that cross the tolerable upper limit once multivitamin, single bottle, and fortified food are added up.
- Gaps — the nutrient you're likely low on based on how you live (indoor work, plant-based, high training load, over 50, etc.).
- Timing and form — magnesium glycinate at night vs oxide, D3 with fat, iron away from coffee and calcium.
How it's different from a brand quiz
Most supplement quizzes are built by companies that sell supplements. The output is usually a monthly subscription box. VitaCheck is independent — we can, and often do, tell you to stop buying something. If your diet and lifestyle look fine, the correct answer is sometimes "you don't need anything new".
Reference values follow the NIH Office of Dietary Supplements. Full methodology on the methodology page.
Related reading
- What supplements should I take? — the general guide
- The best supplements to take — evidence-graded shortlist
- Browse the 70+ supplement library — dose, ceiling, timing per nutrient
Frequently asked questions
How do I get personalized supplement recommendations?
Use a tool that reads your actual diet, lifestyle, and current supplements — not just age and sex. VitaCheck asks about your usual weekly food, sun exposure, symptoms, and every bottle you take, then returns a keep/stop/add list with doses and evidence grades. It takes about 2 minutes and is free.
Are online supplement recommendations trustworthy?
It depends on the incentive. Quizzes run by supplement brands are engineered to recommend products they sell. Independent tools — ones that don't sell their own supplements — can be trusted more. Look for references to the NIH Office of Dietary Supplements, transparent methodology, and an option to say 'you don't need anything'.
What information is needed for a good recommendation?
Three inputs cover most of it: your usual weekly diet (protein, fruit, vegetables, fish), lifestyle factors (sun, training, sleep, medications like PPIs or metformin), and the exact name and dose of every supplement you already take — including gummies and greens powders.
Do I need a blood test first?
For general recommendations, no — most gaps are predictable from diet and lifestyle. For iron, thyroid, or B12 concerns in specific groups, a blood test gives a real answer. A good tool should tell you when to test rather than guess.
Is this a substitute for a doctor or dietitian?
No. VitaCheck is educational information following NIH reference values, not medical advice. If you're pregnant, take prescription medication, or have a chronic condition, run new supplements past your doctor or pharmacist.