What evidage is
evidage is a Tokyo-based, evidence-curated healthspan media site. We read the peer-reviewed literature on food, supplements, and lifestyle, and translate it into clear recommendations with explicit evidence levels — so you can extend your healthspan based on what the science actually says, not what an influencer is selling.
Why we exist
The healthspan literature is rich, but reading it directly is hard work. We do that work for you and translate it into clear, evidence-tagged recommendations. Our role is not to replace other resources, but to give you a peer-reviewed reference point you can return to whenever a claim needs verification.
How we’re different
- Peer-reviewed sources only. Every claim links back to a primary study from journals like NEJM, Lancet, JAMA, BMJ, Cell, and Cochrane. No press releases, no podcasts, no Twitter threads cited as evidence.
- Explicit evidence levels. Each recommendation is tagged Level 1 (RCT / meta-analysis), Level 2 (cohort), Level 3 (small RCT or limited cohort), or Level 4 (mechanistic). See our Evidence Framework for details.
- 4-axis ranking. Our monthly Top 10 is scored on Effect Size (35%), Evidence Quality (30%), Ease of Implementation (20%), and Cost (15%). Rankings change when new major studies arrive — and we explain why.
- No supplements to sell. No store. No affiliate links. No sponsored content. We have no financial reason to recommend or dismiss any specific product.
- Independent, reader-supported. Optional donations via Buy Me a Coffee. Reading evidage is free, always. See our full Independence Policy.
Who’s behind evidage
evidage is published by Hydro Wing Lab Inc., a Tokyo-based research and media company. Editorial direction comes from a senior research engineer with 35 years in peer-reviewed scientific literature — across fuel cells, electrolysis, and hydrogen storage. The same discipline that demands “read the original paper, check the assumptions, quantify the uncertainty” in energy research is what we apply to healthspan content. We have no clinical practice, no patients, no supplements to sell — and that is the point.
We are not physicians, registered dietitians, or licensed medical professionals. evidage is a curator and translator of peer-reviewed research, not a provider of clinical advice. For decisions about your own care, consult a qualified clinician.
Our editorial method
For each topic we cover, the standard workflow is: (1) identify the most-cited recent meta-analyses and systematic reviews; (2) check primary cohort studies and RCTs that informed them; (3) extract effect sizes (HR, RR, NNT, absolute risk reduction); (4) flag conflicts, limitations, and known biases; (5) state the practical recommendation in plain English with an evidence level. Every article includes a “Cautions” section covering common misconceptions, drug interactions, and contraindications.
Update cadence
Our flagship “Monthly Top 10” — the highest-impact healthspan habits ranked across our 4 axes — is updated on the first Monday of each month. Individual food and supplement reviews are added throughout the month as we work through the literature. Major studies that change a ranking are flagged in real time on the corresponding article.
Support evidage
If evidage is useful to you, you can support our work via Buy Me a Coffee. We never refuse a single dollar; we never demand one either. Reading every article on evidage is and always will be free.
Contact
For corrections, feedback, or media inquiries, please use the Contact page. We respond to corrections promptly and update articles when the underlying evidence changes.