A dose-response relationship describes how the effect of a supplement or drug changes as the amount taken changes. In supplement research, this relationship is rarely a straight line. A low dose may …
How to Use ClinicalTrials.gov to Find Ongoing and Completed Studies
ClinicalTrials.gov is a free public database run by the U.S. National Library of Medicine, part of the National Institutes of Health. To find ongoing or completed studies, go to clinicaltrials.gov, …
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Publication Bias: Why Negative Results Rarely Get Published and Why That Matters
Publication bias happens when studies with positive or exciting results are more likely to get published than studies that find no effect or a negative effect. This matters because the medical …
Sample Size and Statistical Power: Why Small Studies Can Mislead
Sample size is the number of people enrolled in a study. Statistical power is a study's ability to detect a real effect if one truly exists. When a study enrolls too few people, it can miss real …
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Understanding P-Values and Statistical Significance in Health Research
A p-value is a number that helps researchers decide if a study result probably happened by chance or reflects a real effect. A small p-value (usually below 0.05) means the result is unlikely to be …
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Clinical Study Safety Data: Adverse Events, Limitations, and What to Watch For
By ClinicalStudyConnect.com Research Desk | September 2026 Safety data in clinical studies tells you what happened to participants beyond the intended benefit — side effects, adverse events, …