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ROI Stack Suppléments (Preuves Gradées) — Outil en ligne gratuit

Nontation A/B/C/D preuves + coût vs bénéfice

Coche tes suppléments → grade preuves (Créatine A, Oméga-3 B, NMN D-) + ratio coût/preuves. Honnête — sans lien d'affiliation. Sans inscription.

Tick what you take + monthly cost:

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En savoir plus

Supplement Stack ROI (Evidence-Graded)

Honest evidence ratings. Most popular longevity supplements have weak human data. We tell you which 5 are worth keeping and which 15 you can drop.

How to use this tool

  1. 1

    Tick supplements

    What you currently take.

  2. 2

    See evidence grade

    A (strong) to D (weak/mostly hype).

  3. 3

    Coût vs benefit

    Identify the bad-ROI ones to drop.

Frequently Asked Questions

How are evidence grades assigned?
A: Multiple RCTs + meta-analyses with consistent positive effect (e.g. creatine for strength). B: Some RCTs, mostly positive, mechanism plausible (e.g. omega-3). C: Mixed evidence or only mechanistic / animal data (e.g. ashwagandha). D: Mostly preclinical, marketing-led, or human studies show null effect (e.g. NMN for longevity in humans).
Why is the supplement industry so misleading?
$160B/year, mostly unregulated. Brands pay influencers, sponsor "studies", confuse mechanism with outcome. Bryan Johnson takes 100+ supplements; most have D-grade evidence. Healthspan = exercise + sleep + diet > all supplements combined.
Which supplements are actually worth it?
A-grade for most: creatine 5g/day, vitamin D (if deficient), omega-3 (if not eating fish 2×/wk). B-grade: magnesium glycinate, fiber if low intake, protein powder if struggling to hit target. Everything else: case-by-case.

À retenir

  • Supplement Stack ROI (Evidence-Graded) is a free, browser-based calculator tool — a/b/c/d evidence rating + cost vs benefit.
  • Non signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Supplement Stack ROI (Evidence-Graded)

  1. Open the tool: Launch Supplement Stack ROI (Evidence-Graded) on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Supplement Stack ROI (Evidence-Graded) — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
100% dans le navigateur — aucune donnée n’est envoyée à un serveur
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
Calculateur Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilSupplement Stack ROI (Evidence-Graded)
CatégorieCalculateur
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use Supplement Stack ROI (Evidence-Graded)?

You should try Supplement Stack ROI (Evidence-Graded) for a quick, private way to a/b/c/d evidence rating + cost vs benefit. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.