Articles

Plain English guides to research, testing and health claims. Each article links to its sources.

• What is a certificate of analysis?
  What a certificate of analysis is, what it should contain, and how to check one.
• What does a sterility test show?
  What sterility testing checks, what a sterile result does and does not mean, and what to ask.
• How health research is reviewed
  Why animal and cell studies are a starting point, and how study types rank for questions about people.
• Why health claims online run ahead of the evidence
  Common patterns in health claims online, and a simple check to run before you trust one.
• GLP-1 medicines and lean mass
  What a 2026 meta-analysis of randomised trials found about lean body mass during GLP-1 treatment.

Educational content. Not medical advice.

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