SOURCE-BASED EDITORIAL GUIDE · SPECIALIST REVIEW PENDING
What the evidence says
WHO describes a healthy diet in terms of adequacy, balance, moderation and diversity. Food choices sit within a wider context of culture, access and individual needs.
A study of an isolated ingredient does not evaluate every product containing it. Formulation, study population and the measured outcome need to match the claim being made.
THE TAKEAWAY
Read dietary guidance before chasing individual compounds.
Where the evidence stops
This guide is not a personalised nutrition plan or evidence that one food prolongs life.
Read the original sources
Source pages checked on 23 October 2026. This is not the publication date of each study. Original sources may be in English.
WHO · Healthy dietwww.who.int · Sources checked: 2026-10-23FDA · Dietary supplement questions and answerswww.fda.gov · Sources checked: 2026-10-23Questions worth taking further
- Was the outcome measured in humans, animals or cells?
- Does the study population match the people in the claim?
- What benefits, harms and uncertainties remain unmeasured?