How we write
Our editorial process for supplement and nutrition guides.
Research and sources
We base our guides on human clinical trials, systematic reviews, and meta-analyses where available. We prefer higher-quality evidence (e.g. RCTs, Cochrane-style reviews) and note when evidence is limited or conflicting. We do not rely on manufacturer claims alone; we cite peer-reviewed literature and clearly separate what is well-supported from what is preliminary or speculative.
Evidence grades
We assign evidence grades (A, B, C) to reflect the strength and consistency of the research for a given outcome. These grades describe the state of the science, not whether a supplement is “good” or “bad.” A lower grade may mean limited or mixed data, not that a compound is ineffective. We explain what the grade means in context for each topic.
Review and updates
Our content is reviewed internally for accuracy and alignment with current evidence. We update guides when new, meaningful research appears or when dosing, safety, or regulatory information changes. We show a “last updated” or review date where relevant so you can see how current the information is.
What we don't do
Our guides are for education only. They are not medical advice and do not replace a healthcare provider. We do not diagnose, treat, or recommend starting or stopping supplements for any individual; we summarize the evidence and general practices so you can have better conversations with your doctor or dietitian.