Our guides are based on published research and guidance from respected public-health organisations. This page explains where our information comes from and how we use it.
Where our information comes from
- Peer-reviewed research studies and reviews
- Guidance from national health organisations and professional bodies
- Practical experience from parents, reviewed for safety and accuracy
How we use it
- Every guide lists the sources it is based on
- We explain what the evidence does and does not show, in plain words
- We do not recommend treatments that lack good evidence or could cause harm
- We update guides when the evidence changes
Read more about how we check every guide.