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Reading the research
How to judge a study headline
Questions that separate strong evidence from a promising rat study.
- Who was studied? Cells and animals often respond very differently from people. Most research-peptide claims rest on rodent studies.
- Was there a control group, and was it randomized? Randomized controlled trials (RCTs) are the strongest single studies; uncontrolled reports can't separate the compound's effect from everything else.
- How many people? A result in 12 people is far less certain than one in 1,200.
- What was measured? A change in a blood marker isn't the same as feeling or doing better.
- Who ran it? Studies by a compound's developer aren't wrong, but independent confirmation counts more. Preprints haven't been peer-reviewed yet.
- Is it one study or many? Meta-analyses that pool many trials are more reliable than any one paper.
Key points
- Humans > animals > cells.
- Randomized and controlled beats uncontrolled.
- Bigger, independent, repeated results are more trustworthy.
Quick check
A headline says a peptide 'heals tendons'. The study used 20 rats. How strong is that for people?
Animal results often don't carry over to people; human trials are needed.
Which design best separates the compound's effect from chance and expectation?
Randomization and a control group are what let an RCT attribute the difference to the compound.
Sources
General education, not medical advice. Nothing here recommends using any compound or amount.