Metabolism Explained uses a mechanism → evidence → limitations approach. We ask what biological process is involved, what the available evidence supports, and what remains uncertain. The goal is to make metabolism, peptide hormones and clinical research understandable without turning early findings into treatment claims.
How we select and describe evidence
Original peer-reviewed studies are the preferred foundation for scientific and clinical findings. Primary medical authorities—such as regulators, official prescribing information and clinical-trial registries—are used for approval status, indications, warnings and trial status. Technical or time-sensitive claims are checked against current primary documentation when an article is prepared or updated.
We identify the kind of evidence being discussed. Cell and biochemical studies can clarify molecular mechanisms, but cannot establish effects in a whole person. Animal studies may support biological plausibility while leaving important questions about human relevance. Observational human research can identify associations, but generally cannot prove causation. Randomized human trials provide stronger evidence about interventions, although their meaning still depends on design and execution.
When trial details materially affect interpretation, we explain the population, comparator, duration, endpoints and important limitations. We distinguish Phase 1 safety and pharmacology research from Phase 2 efficacy signals, Phase 3 confirmatory evidence, approved-use evidence and post-marketing data. Cross-trial comparisons are indirect unless interventions were randomized head-to-head. Our guide to reading weight-loss clinical-trial results shows how several of these checks work in practice.
Different claims require different criteria
We do not use an invented universal numerical score. A mechanistic article may turn on biochemical specificity and consistency across models. A clinical article requires attention to randomization, comparators, missing data, endpoint relevance, effect size and safety reporting. For body-composition claims, scale weight, fat mass, lean mass, water or glycogen shifts, and physical function are separate outcomes rather than interchangeable measures.
Research, supplier statements and editorial judgment
Research findings are presented as findings from the underlying studies, not as firsthand testing by Metabolism Explained. Any documented firsthand work would be labeled clearly, including what was done and its limits. Supplier or sponsor statements can establish company-reported product details or pipeline updates when relevant, but they are not treated as independent scientific confirmation.
Editorial judgment connects the evidence to the reader’s question; it does not create missing data. Material commercial relationships should be disclosed when documented and relevant.
Regulatory and safety boundaries
Endogenous hormones, approved medicines, investigational compounds, compounded products, supplements and research-use-only materials are separate categories. Approval, availability, sponsor, warning and trial-status information can change and requires date-sensitive checking. Metabolism Explained provides education, not individualized diagnosis, treatment selection, dosing, self-administration or acquisition guidance.