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No account required · 2 minutes · 26 supplements analyzed
Latest from the Blog
Supplement science, explained plainly.
Brittle, Ridged, or Peeling Nails? The Deficiencies Your Hands Are Trying to Show You
Splitting, peeling, or spoon-shaped nails can be a six-month record of a nutrient shortfall — or just what dish soap does to keratin. This evidence-based guide covers which deficiencies genuinely show up in nails, the one supplement with real trial data, and what no capsule will fix.
Does Coffee Block Your Supplements? What Caffeine Does to Iron, Calcium, and Your Multivitamin
Taking your vitamins with your morning coffee can quietly erase most of what you paid for — iron absorption can drop by half or more. This evidence-based guide covers exactly which supplements coffee interferes with, which ones it leaves alone, and the simple timing fix.
Itchy Skin But No Rash? The Nutrient Deficiencies That Make You Itch From the Inside
An itch that crawls under your skin with no rash to show for it is easy to dismiss — but it can be a real, measurable nutrient deficiency. This evidence-based guide covers how iron, vitamin B12, vitamin D, and zinc deficiencies cause itching, which blood tests to ask for, and the exact supplements that fix them.
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How it works
Our scoring engine is adapted from PubMed systematic reviews and meta-analyses.

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Evidence-Based Scoring
Our engine weighs your answers against PubMed research to rank supplements by relevance.

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Supplements we analyze
26 science-backed supplements, each ranked by evidence quality.
Vitamin D3
Immunity · Mood · Energy
Magnesium Glycinate
Sleep · Stress · Recovery
Omega-3 (Fish Oil)
Brain · Heart · Mood
Ashwagandha KSM-66
Stress · Sleep · Muscle
Creatine Monohydrate
Muscle · Focus · Energy
NAC (N-Acetyl Cysteine)
Longevity · Immunity · Mood
Evidence tiers: Strong = meta-analyses & RCTs · Moderate = multiple RCTs · Limited = small trials · Weak = early research
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Evidence-Based Only
Every recommendation is ranked by research quality — from strong to preliminary evidence. No hype, no snake oil.
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