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NutriDupe Research Guides & Scientific Audits

Evidence-based breakdowns, active-ingredient audits, and price-per-serving analyses.

Featured Article
Scientific Audit7 Min ReadOctober 2026

Athletic Greens AG1: Scientific Analysis & Top cGMP Alternatives (2026 Audit)

Our 50/30/20 active-ingredient audit of AG1 reveals two cGMP-certified alternatives delivering clinically equivalent spirulina, ashwagandha, and digestive enzyme profiles at less than half the cost per serving.

Read Full Audit
More Research Guides
Bioavailability Guide

Magnesium Glycinate vs. Oxide: Bioavailability Grade 5 vs. Grade 1 Explained

Why magnesium oxide absorbs at just 4% while chelated glycinate reaches over 80%. We break down the chemistry, clinical data, and cost implications for each form.

5 Min ReadOctober 2026
Ingredient Deep Dive

KSM-66 Ashwagandha: Sourcing Standards and cGMP Equivalents

Not all ashwagandha extracts are created equal. We compare KSM-66 root-only extraction against generic full-spectrum powders and identify verified alternatives.

6 Min ReadOctober 2026

More guides coming soon. We publish new scientific audits and ingredient deep dives every month. Have a product you want audited? Let us know.

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